uxcell Plastic Round Blanking End Caps Tube Inserts 25mm Dia 20 Pcs Black Color: Black; Total Size: 25 x 16mm/ 1" x 0.6" (D*H) Material: Plastic; Net Weight: 42g Package Content: 20 x Round Tube Inserts Product Name: Round Tube Inserts Thread Diameter: 24mm / 0.95"