SUPEB UNIVERSAL CHAIN RIVET EXTR. 5-12SP

3-step intuitive operation: push the button, put on the cradle and release the button.Then you can break various chains, including 3/32" to 3/16" and 5 to 12 speed chains.The cradle holds 4 links to ensure users break / install chain stably when chain is installed on the bike and to avoid damaging the chain.