Size:The "20" indicates that the rim strip is designed for a 20-inch bicycle wheel. It's important to match the rim strip size with the wheel size to ensure proper fit.Width:The "22mm wide" specification refers to the width of the rim strip. This measurement is crucial to ensure that the rim strip fully covers the spoke holes and provides adequate protection for the inner tube.Material:Rim strip is made from rubber. They act as a protective barrier between the inner tube and the rim, preventing the tube from coming into direct contact with sharp edges or spoke nipples.Installation:Installing a rim strip involves placing it inside the rim, covering the spoke holes. It's essential to position the rim strip evenly and securely to ensure effective protection for the inner tube.Purpose:Rim strips are crucial for preventing punctures caused by the spoke holes or rough edges inside the rim. They provide an additional layer of protection between the inner tube and the rim.Compatibility:Ensure that the rim strip is compatible with the specific type of rim you have. Different rim designs may require different styles of rim strips.