The tube adopts a hidden buckle design, which makes installation and disassembly easier. The tube cap will be firmly attached to the tube and will not fall off easily. The pipe liner is made of durable PP plastic, which is not easy to deform or break and has excellent resistance to heat and corrosion. The radiator hose ring can be easily installed without tools, no need to disconnect the hose, just tighten the buckle by hand, easy to assemble later and can be reused several times. Set of 12 decorative caps, 12 (inner diameter 11-13 mm outer diameter 45 mm). is enough to meet the needs of the entire house. Can cover holes in buildings reserved for pipes and chimneys. Suitable for radiators, water pipes, heating pipes, taps, angle valves, gas pipes, heating pipes, etc.