36Pcs Square Plastic Plug Insert, 0.51″ X 0.51″ Black Plastic Plugs End Cap Tube
Material: The plastic plug insert is made of PE material, which is soft, non-slip, and not easy to tear. It is corrosion-resistant and long-lasting. Features multiple flexible ribs for a snug fit. Material - The plastic plug insert is made of PE material, which is soft, non-slip, and not easy to tear.It is corrosion-resistant and long-lasting.