PRO CHAIN EXTRACTOR 62P3 - Pro shop chain tool Perfect for 7, 8, 9, and 10-speed chains - For Shimano compatible HG/UG/IG chains - Cr-Mo steel. - Connecting rivet pilot pin breaker included. - Special lid insures the chain at the right position. So there is no need to put your fingers on the chain to avoid greasy and dirty. Patented. - Spare pin available