uxcell Plastic Blanking End Caps Round Tube Inserts 38mm Dia 50pcs Black Color: Black; Total Size: 38 x 14mm/1.5" x 0.55"(D*H) Material: Plastic; Net Weight: 230g Package Content: 50(+/-2%) x Round Tube Inserts Product Name: Round Tube Inserts Fit Hole Diameter: 36mm/ 1.4"