uxcell Plastic Round Blanking End Caps Tube Pipe External Inserts 32mm 20pcs Product Name : Round Tube Insert;Thread Size(Each) : 23 x 30mm/ 0.9&#39; x 1.2"(ID*OD) Total Size : 32 x 17mm/ 1.3" x 0.67"(D*H);Color : Black Material : Plastic Weight : 91g Package Content : 20 x Round Tube Insert