1 Inch (25 Mm) Square Plastic Plugs Tubing End Caps for Square Tubing Post (4 Pa
Good toughness, not easy to deform. Material: Made of high-quality plastic, the tubing plug is lined with helical wire, which fits tightly, is easy to install, and has a wide range of adaptability. The threaded plug is not easy to slide out and is tightly combined with the pipe.