uxcell Plastic Round Blanking End Caps Inserts Bung Tube Insert 30mm 50 Pcs Item Name : Round Tube Insert;Total Size : 30 x 17mm/1.2" x 0.6"(D*H) Mounting Dia : 29mm/1.1";Color : Black Material : Plastic Weight : 172g Package Content : 50 x Round Tube Inserts