Pack of 200 Heavy Duty Rubber Square Chair Leg Caps to Protect Floor Furniture and Tables, Black Color Style and Size: 200 Pieces Black, Square Plug, 13*13mm WHAT YOU WILL GETThis tube insert can greatly reduce noise, you don't have to worry about hearing harsh sounds when moving tables and chairs. High quality materialThe plastic cap is made of high quality plastic to prevent damage to objects. Not easy to deform, not easy to break, smooth and wear-resistant, good flexibility.[Function] The unique design of the pipe plug can not only ensure the stability of the furniture, but also prevent water and dust from entering the pipe, keeping it neat and clean, and preventing the furniture from making noise.Wide ApplicationSuitable for chairs, tables, shelves, cabinets, sofas and others metal or wooden furniture to prevent scratches and damage to furniture etc.Easy InstallationFor easy installation, each tube insert is ribbed, just line it up with the tube before installation. Ribs provide a secure fit, avoiding the need for additional adhesive.These heavy-duty protective tube inserts are perfect for all square tube ends and cover pointed tube ends such as the feet of furniture chair.1. Prevent your sofa, chair or table from leaving large bumps on the floor when there is nothing under your feet.2. Protect the internal parts of the application by providing a neat finish to the ends of the pipes to prevent the ingress of dust and moisture.Methods of measurement1. Use vernier calipers to measure the outer wall of the steel pipe2. Please choose a plastic cap of the same size as the outer diameter of the steel pipe3. When the size of the inner plug is slightly larger, it can be tapped correctly, or the blade can be cut correctly with cutting pliers, and then installed4. The inside diameter of the pipe plug is usually not mentioned. It requires the pipe plug to have a dent that is glued to the inside wall of the pipe. The tooth is flexible and will bend. Therefore, the pipe with a wall thickness of 0.5-2mm can be purchased according to the outer diameter of the pipe. If the pipe wall is too thick, you can also cut the tooth yourself and press it into the scope.