![Amazon.com: 5X Ribbed Insert Plug END Cap Rectangular Tube 20x10 to 60x50MM White (20x10mm) : Industrial & Scientific Amazon.com: 5X Ribbed Insert Plug END Cap Rectangular Tube 20x10 to 60x50MM White (20x10mm) : Industrial & Scientific](https://m.media-amazon.com/images/I/51RUlBP+6uL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 5X Ribbed Insert Plug END Cap Rectangular Tube 20x10 to 60x50MM White (20x10mm) : Industrial & Scientific
![Amazon.com: (Set of 8) 2"x 4"OD Rectangular Tube Plug, Non-Slip Plastic Tubing End Cap, Furniture Chair Leg Caps, Chair Insert Glides|Finishing Plug for Chair Table Stool Leg Fence Post Pipe(Black,50x100 mm : Amazon.com: (Set of 8) 2"x 4"OD Rectangular Tube Plug, Non-Slip Plastic Tubing End Cap, Furniture Chair Leg Caps, Chair Insert Glides|Finishing Plug for Chair Table Stool Leg Fence Post Pipe(Black,50x100 mm :](https://m.media-amazon.com/images/I/71mZvzBqClL._AC_UF894,1000_QL80_.jpg)
Amazon.com: (Set of 8) 2"x 4"OD Rectangular Tube Plug, Non-Slip Plastic Tubing End Cap, Furniture Chair Leg Caps, Chair Insert Glides|Finishing Plug for Chair Table Stool Leg Fence Post Pipe(Black,50x100 mm :
![Amazon.com: Othmro 2Pcs 11mm 40 Wells Centrifuge Tube Holder, Lab Tube Racks Storing Bracket Rack, Rectangular Plastic Stand Bracket Rack for Labortory Holder Party Favors Decoration Transparent : Industrial & Scientific Amazon.com: Othmro 2Pcs 11mm 40 Wells Centrifuge Tube Holder, Lab Tube Racks Storing Bracket Rack, Rectangular Plastic Stand Bracket Rack for Labortory Holder Party Favors Decoration Transparent : Industrial & Scientific](https://m.media-amazon.com/images/I/51Lg15J9qEL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Othmro 2Pcs 11mm 40 Wells Centrifuge Tube Holder, Lab Tube Racks Storing Bracket Rack, Rectangular Plastic Stand Bracket Rack for Labortory Holder Party Favors Decoration Transparent : Industrial & Scientific
![A500/A513 Carbon Steel Rectangular Tubing, Hot Rolled, ASTM A36, 1" Height, 1.5" Width, 0.065" Wall, 12" Length, OnlineMetals: Steel Metal Raw Materials: Amazon.com: Industrial & Scientific A500/A513 Carbon Steel Rectangular Tubing, Hot Rolled, ASTM A36, 1" Height, 1.5" Width, 0.065" Wall, 12" Length, OnlineMetals: Steel Metal Raw Materials: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/41K96xhaPtL._AC_UF894,1000_QL80_.jpg)
A500/A513 Carbon Steel Rectangular Tubing, Hot Rolled, ASTM A36, 1" Height, 1.5" Width, 0.065" Wall, 12" Length, OnlineMetals: Steel Metal Raw Materials: Amazon.com: Industrial & Scientific
![Amazon.com: uxcell Plastic Home Rectangle Tube Inserts End Blanking Cap 48mm x 24mm 10 Pcs Black : Tools & Home Improvement Amazon.com: uxcell Plastic Home Rectangle Tube Inserts End Blanking Cap 48mm x 24mm 10 Pcs Black : Tools & Home Improvement](https://m.media-amazon.com/images/I/51M3KiAve3L._AC_UF894,1000_QL80_.jpg)
Amazon.com: uxcell Plastic Home Rectangle Tube Inserts End Blanking Cap 48mm x 24mm 10 Pcs Black : Tools & Home Improvement
![Amazon.com: 6063 Aluminum Rectangular Tube 1/2" X 1" X .125" Wall 12" Piece : Industrial & Scientific Amazon.com: 6063 Aluminum Rectangular Tube 1/2" X 1" X .125" Wall 12" Piece : Industrial & Scientific](https://m.media-amazon.com/images/I/31c-kGrzONL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 6063 Aluminum Rectangular Tube 1/2" X 1" X .125" Wall 12" Piece : Industrial & Scientific
![Amazon.com: Rectangular Tube Inserts, Ribbed Plastic End Caps - Made in Germany (Grey, 60x30mm - See The Second Image for Ordering Guide, Pack of 12) : Tools & Home Improvement Amazon.com: Rectangular Tube Inserts, Ribbed Plastic End Caps - Made in Germany (Grey, 60x30mm - See The Second Image for Ordering Guide, Pack of 12) : Tools & Home Improvement](https://m.media-amazon.com/images/I/61GNdQllEZL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Rectangular Tube Inserts, Ribbed Plastic End Caps - Made in Germany (Grey, 60x30mm - See The Second Image for Ordering Guide, Pack of 12) : Tools & Home Improvement
![Amazon.com: Small Parts ALL22184-4 Mild Steel Rectangular Tube, Unpolished (Mill), 2" Height x 3" Width, 0.083" Wall Thickness, 4' Length : Industrial & Scientific Amazon.com: Small Parts ALL22184-4 Mild Steel Rectangular Tube, Unpolished (Mill), 2" Height x 3" Width, 0.083" Wall Thickness, 4' Length : Industrial & Scientific](https://m.media-amazon.com/images/I/61XDaaFg9zL.jpg)
Amazon.com: Small Parts ALL22184-4 Mild Steel Rectangular Tube, Unpolished (Mill), 2" Height x 3" Width, 0.083" Wall Thickness, 4' Length : Industrial & Scientific
![Amazon.com: uxcell Plastic Rectangle Tube Inserts End Blanking Cap 15mm x 40mm 50 Pcs Black : Home & Kitchen Amazon.com: uxcell Plastic Rectangle Tube Inserts End Blanking Cap 15mm x 40mm 50 Pcs Black : Home & Kitchen](https://m.media-amazon.com/images/I/61yOfIjzF0L._AC_UF894,1000_QL80_.jpg)
Amazon.com: uxcell Plastic Rectangle Tube Inserts End Blanking Cap 15mm x 40mm 50 Pcs Black : Home & Kitchen
![Amazon.com: Plugs for Rectangular Tubes - Rectangular Tubing Plug - for 30 x 70mm Tubes - Tube Wall: 1.5-2mm - Flat - Black LDPE MOCAP RC7030MBBK1 (qty10) : Industrial & Scientific Amazon.com: Plugs for Rectangular Tubes - Rectangular Tubing Plug - for 30 x 70mm Tubes - Tube Wall: 1.5-2mm - Flat - Black LDPE MOCAP RC7030MBBK1 (qty10) : Industrial & Scientific](https://m.media-amazon.com/images/I/517Zd949IGL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Plugs for Rectangular Tubes - Rectangular Tubing Plug - for 30 x 70mm Tubes - Tube Wall: 1.5-2mm - Flat - Black LDPE MOCAP RC7030MBBK1 (qty10) : Industrial & Scientific
![Amazon.com: (8 Pack) CAPLUGS - 1 1/2" x 3" | 10-14 Ga Tube Insert | Snap in Rectangular Cap Plugs | Fence Post Steel Pipe Tube Inserts - Fitness Equipment End Caps : Industrial & Scientific Amazon.com: (8 Pack) CAPLUGS - 1 1/2" x 3" | 10-14 Ga Tube Insert | Snap in Rectangular Cap Plugs | Fence Post Steel Pipe Tube Inserts - Fitness Equipment End Caps : Industrial & Scientific](https://m.media-amazon.com/images/I/61FscrCDroL._AC_UF894,1000_QL80_.jpg)
Amazon.com: (8 Pack) CAPLUGS - 1 1/2" x 3" | 10-14 Ga Tube Insert | Snap in Rectangular Cap Plugs | Fence Post Steel Pipe Tube Inserts - Fitness Equipment End Caps : Industrial & Scientific
![Amazon.com: Hot Rolled Steel Square Tubing, ASTM A-36, 1" x 1", 0.065" Wall, 12" Length : Industrial & Scientific Amazon.com: Hot Rolled Steel Square Tubing, ASTM A-36, 1" x 1", 0.065" Wall, 12" Length : Industrial & Scientific](https://m.media-amazon.com/images/I/71OwnPcIbWL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Hot Rolled Steel Square Tubing, ASTM A-36, 1" x 1", 0.065" Wall, 12" Length : Industrial & Scientific
![Amazon.com: DbHFgjMN 10x30mm,Thick 1mm/2mm,Rectangular Aluminum Tube Profile,6063 Aluminum Square Pipe,Aluminum Profile for Decoration Pleasantly (Color : Thick 2mm, Length : 50cm) : Industrial & Scientific Amazon.com: DbHFgjMN 10x30mm,Thick 1mm/2mm,Rectangular Aluminum Tube Profile,6063 Aluminum Square Pipe,Aluminum Profile for Decoration Pleasantly (Color : Thick 2mm, Length : 50cm) : Industrial & Scientific](https://m.media-amazon.com/images/I/411AitH8eiL._AC_UF894,1000_QL80_.jpg)
Amazon.com: DbHFgjMN 10x30mm,Thick 1mm/2mm,Rectangular Aluminum Tube Profile,6063 Aluminum Square Pipe,Aluminum Profile for Decoration Pleasantly (Color : Thick 2mm, Length : 50cm) : Industrial & Scientific
![Masendelk 40 Pack 1-1/2” x 1/2” Rectangular Tube Plug, 38 x 13mm Black Furniture End Caps Plastic Plug Insert for Furniture Foot Chair Legs Tube - - Amazon.com Masendelk 40 Pack 1-1/2” x 1/2” Rectangular Tube Plug, 38 x 13mm Black Furniture End Caps Plastic Plug Insert for Furniture Foot Chair Legs Tube - - Amazon.com](https://m.media-amazon.com/images/I/71URK1p5kaL._AC_UF1000,1000_QL80_.jpg)
Masendelk 40 Pack 1-1/2” x 1/2” Rectangular Tube Plug, 38 x 13mm Black Furniture End Caps Plastic Plug Insert for Furniture Foot Chair Legs Tube - - Amazon.com
![Amazon.com: Rectangle Black Plastic Plug End Cap - 4" X 2” Rectangular Tube Caps - Rectangle Tubing End Cap Plug - Plastic Plugs for Rectangular Tube - Rectangular Hole Plug - Rectangular Amazon.com: Rectangle Black Plastic Plug End Cap - 4" X 2” Rectangular Tube Caps - Rectangle Tubing End Cap Plug - Plastic Plugs for Rectangular Tube - Rectangular Hole Plug - Rectangular](https://m.media-amazon.com/images/I/71dvmCf6C2L._AC_UF894,1000_QL80_.jpg)
Amazon.com: Rectangle Black Plastic Plug End Cap - 4" X 2” Rectangular Tube Caps - Rectangle Tubing End Cap Plug - Plastic Plugs for Rectangular Tube - Rectangular Hole Plug - Rectangular
![Amazon.com: New Metal Aluminum Rectangle TUBING - 1" x 2" x .120" x 90" SH-3809M Warranity by KolotovichTool : Industrial & Scientific Amazon.com: New Metal Aluminum Rectangle TUBING - 1" x 2" x .120" x 90" SH-3809M Warranity by KolotovichTool : Industrial & Scientific](https://m.media-amazon.com/images/I/61ChnKoEBmL._AC_UF894,1000_QL80_.jpg)
Amazon.com: New Metal Aluminum Rectangle TUBING - 1" x 2" x .120" x 90" SH-3809M Warranity by KolotovichTool : Industrial & Scientific
![Amazon.com: Plugs for Rectangular Tubes - Rectangular Tubing Plug - for 50 x 150mm Tubes - Tube Wall: 1.5-2mm - Flat - Gray LDPE MOCAP RC15050MBGR1 (qty150) : Industrial & Scientific Amazon.com: Plugs for Rectangular Tubes - Rectangular Tubing Plug - for 50 x 150mm Tubes - Tube Wall: 1.5-2mm - Flat - Gray LDPE MOCAP RC15050MBGR1 (qty150) : Industrial & Scientific](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/51GPcguIzwL._AC_UF894,1000_QL80_.jpg)
Amazon.com: Plugs for Rectangular Tubes - Rectangular Tubing Plug - for 50 x 150mm Tubes - Tube Wall: 1.5-2mm - Flat - Gray LDPE MOCAP RC15050MBGR1 (qty150) : Industrial & Scientific
![Amazon.com: 1Pcs 3k Carbon Fiber Rectangular Square Tube, Length 500mm OD 8 10 15 18 20 22 25 30mm Twill Matte Large Diameter High Strength Full Carbon Fiber Tube (Color : 30X30X26MM) : Industrial & Scientific Amazon.com: 1Pcs 3k Carbon Fiber Rectangular Square Tube, Length 500mm OD 8 10 15 18 20 22 25 30mm Twill Matte Large Diameter High Strength Full Carbon Fiber Tube (Color : 30X30X26MM) : Industrial & Scientific](https://m.media-amazon.com/images/I/61vH7voF7gL._AC_UF894,1000_QL80_.jpg)
Amazon.com: 1Pcs 3k Carbon Fiber Rectangular Square Tube, Length 500mm OD 8 10 15 18 20 22 25 30mm Twill Matte Large Diameter High Strength Full Carbon Fiber Tube (Color : 30X30X26MM) : Industrial & Scientific
![Amazon.com: Plugs for Rectangular Tubes - Rectangular Tubing Plug - for 40 x 60mm Tubes - Tube Wall: 1.5-2mm - Flat - Gray LDPE MOCAP RC6040MBGR1 (qty100) : Industrial & Scientific Amazon.com: Plugs for Rectangular Tubes - Rectangular Tubing Plug - for 40 x 60mm Tubes - Tube Wall: 1.5-2mm - Flat - Gray LDPE MOCAP RC6040MBGR1 (qty100) : Industrial & Scientific](https://m.media-amazon.com/images/W/IMAGERENDERING_521856-T1/images/I/51GPcguIzwL.jpg)
Amazon.com: Plugs for Rectangular Tubes - Rectangular Tubing Plug - for 40 x 60mm Tubes - Tube Wall: 1.5-2mm - Flat - Gray LDPE MOCAP RC6040MBGR1 (qty100) : Industrial & Scientific
![Amazon.com: Piutouyar Rectangular Tubing End Caps, Plastic Plug Insert, Black End Cap for Tube Hole Insert, Fences, Furniture Non-Slip Protection (40mm x 20mm / 1.57 Inch x 0.79 Inch ),20Pcs : Industrial Amazon.com: Piutouyar Rectangular Tubing End Caps, Plastic Plug Insert, Black End Cap for Tube Hole Insert, Fences, Furniture Non-Slip Protection (40mm x 20mm / 1.57 Inch x 0.79 Inch ),20Pcs : Industrial](https://m.media-amazon.com/images/I/61DNnUc8LzL.jpg)
Amazon.com: Piutouyar Rectangular Tubing End Caps, Plastic Plug Insert, Black End Cap for Tube Hole Insert, Fences, Furniture Non-Slip Protection (40mm x 20mm / 1.57 Inch x 0.79 Inch ),20Pcs : Industrial
![Caplugs 99191811 Plastic Plug for Rectangular Tubing. RER-40 X 80-3-4MM, PE-LD, Hole Width 40MM" Hole Length 80MM" Wall Thickness 3-4mm", Black (Pack of 50): Amazon.com: Industrial & Scientific Caplugs 99191811 Plastic Plug for Rectangular Tubing. RER-40 X 80-3-4MM, PE-LD, Hole Width 40MM" Hole Length 80MM" Wall Thickness 3-4mm", Black (Pack of 50): Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/61gqJk-JWPL._AC_UF1000,1000_QL80_.jpg)