SODIAL(R) Plastic Caps Round Tubing Tube Insert Covers 40mm Dia 5 Pcs Black Item Name : Round Tube Insert;Thread Diameter(Each) : 33x 38mm/ 1.3"x 1.5"(ID*OD) Total Size : 40x 20mm/ 1.6"x 0.78"(D*H);Color : Black Material : Plastic Weight : 35g Package Content : 5 x Round Tube Insert