Set - It contains 3 different sizes of white pipe covers, and 8 pieces each size, for a total of 24 pieces. .Dimensions - The hole diameters of the 3 pipe covers are 16mm, 20mm and 25mm respectively. .Material - These heating pipe covers are made of high-quality plastic, have excellent heat resistance, good toughness, corrosion resistance, and are very durable. .Easy to install - This plastic pipe collar is very easy to install, simple and generous, and it can beautify, cover and block the pipe holes. .Application - This plastic pipe cover collar is suitable for all kinds of pipes, such as heating pipes, water pipes, gas pipes, angle valves, faucets, radiator, drain line, etc. . Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store