Supergrip Vinyl Pushrim Covers provide better grip than traditional, more expensive pushrims. They easily slip over your existing rim without the need for tools. Older more traditional vinyl coded handrims are expense, hard to maintain, and difficult and costly to replace. In comparison, the Surgrip Vinyl Coated Handrims are easy to put on and remove by yourself without the need for tools or multiple people. Simply slip it on over your rim and go.