Spoke Skins give your bike a sick look, protect your spokes, and are one of the most inexpensive ways to make your bike one of a kind. If you want your bike to stand out at the track then Spoke Skins are for you. easy to install comes 21″ front and 19″ back for big bikes and multiple sizes for smaller bikes. Can do custom length and can also mix-n-match available colors upon request. Skins can be heat seamed at the splits using a heat gun or hot air gun and applying heat at the split, do not overheat as it may cause the tubing to warp. The OD is 1/4 and the ID is 3/16, you can pressure washer to clean without skins coming off easy; wash with soap and water. They do not peel, chip or fade. Protect spokes.