(Pack of 8) 1/2" OD Square End Caps (16-18 Ga - 0.37" - 0.40" ID Tube Covers '' 0.50 Square Inch Sliding Inserts ' Furniture Chair / Table Leg Caps ' Fitness Eqpt End Caps
5/8" Square TUBING END Cap Plug - Quantity of 8. (Fits 0.46"-0.55" Tube Id - INSIDE MEASUREMENTS LENGTH N & WIDTH ).THE OUTSIDE MEASUREMENT OF THESE PLUGS TOP CAP IS 5/8"