uxcell Round Plastic Blanking End Caps Tubing Tube Inserts 38mm Dia 2pcs Item Name : Round Tube Insert;Fit for Mounting Size : 37mm/ 1.46" Total Size : 38 x 16mm/1.5" x 0.6"(D*H);Color : Black Material : Plastic Weight : 12g Package Content : 2 x Round Tube Inserts