BACKUP PIN: there is a backup pin with the chain splitter, made by stainless steel, more strong and not easy bending UNIVERSAL: the chain link removal is suitable for most of bicycles, easily to works on 7/8/9/10 speed chain, so you never have to worry about buying a different tool for your household bikes EASY USING: get your bike chain fixed easily by using this chain breaker! easy to remove link, easy to re-install link. just line everything up properly and push the pin out and remove link, again take your time putting the chain back together, line it all up and push link pin back in DURABLE & WELL MADE: the chain rivet tool was made by carbon steel, very strong and durable so there is no worries of its breaking or bending while working on your bike. the handle part made by plastic with coated, very comfortable and anti-slip COMPACT & PORTABLE: this bike chain remover is in compact design and portable for carrying to anywhere anytime