uxcell Plastic Blanking End Caps Round Tube Inserts 25mm Dia 30pcs Black Plastic Color: Black; Total Size: 25 x 17mm/1" x 0.67"(D*H) Material: Plastic; Net Weight: 71g Package Content: 30 x Round Tube Inserts Product Name: Round Tube Inserts Fit Hole Diameter: 23mm/0.9"