Tube end cap

A push-in end cap for round, square or rectangular metal tube, the kind that finishes chair and table legs, shelving uprights and trolley handles. Enter the tube's outside size and wall thickness as you measure them, or pick a common size, and the plug is sized to the bore for you. Springy fins angled back like a Christmas tree push in easily and resist pulling out, and the head can be flat, domed, or a thick floor-glide foot with a recess for a felt pad. It prints head down with no supports.