(Pack of 500)1 1/4" - 1.25 Inch Square Black Plastic 14-20 Ga ( 1.1"-1.17" ID) Tubing Plug, End Cap -Steel Fence Post Pipe Tube Cover - Furniture sliding Inserts - End Caps for Fitness Equipment Hardness: Durometer 50D. Maxmimum Temperature 150 F Flexible ridges or straps snugly hold these plugs in place. Compatible Tubing Wall Thickness 14 - 20 Gauge Custom Made Made With High Grade Plastic LDPE (Pack of 500)1 1/4" - 1.25 Inch Square Black Plastic 14-20 Ga ( 1.1"-1.17" ID) Tubing Plug, End Cap -Steel Fence Post Pipe Tube Cover - Furniture sliding Inserts - End Caps for Fitness Equipment