Square Tube Inserts, Chrome Inserts, Stand off Feet, Angled Feet and Halfmoon Square Feet are ideal as square end caps for tubing. Our extensive range of low density polyethylene square tube end fittings are the ideal tube component to fit a wide variety of tube sizes. These square tube inserts are designed to be inserted into hollow square tube with ribbed sides for a secure fitting to offer protection from sharp tube edges. Our square tube caps come as black or white as standard, and other colours can be supplied by special order. We offer extensive stocks in imperial and metric sizes to suit a variety of tube wall thicknesses. For an ideal fit to neatly finish off your tubing, just measure your square tube outside diameter and choose from our range. We carry thousands of each size of tube inserts in stock. To complement this range we also supply square steel tube and tube connectors.