(Pack of 8) 1 1/2" Round (10 - 14 Ga 1.24" to 1.33" ID) Plastic Tubing Plug 1.5 Inch End Cap - Steel Furniture Pipe Tube - Chair Leg - Table Glide Insert | End Caps for Fitness Eqpt. For Fencing Posts, Furniture End Caps, Fitness Equipment End Caps Flexible ridges snugly hold these plugs in place. For Unthreaded Surface Type with Stright Profile ** for 10 - 14 Ga 1.24 to 1.33" ID. Wall thickness 0.134" to 0.083" Maximum Temperature 150 ' F.