The CT-6 works like a heavy workshop quality chain tool&44; but folds into a compact & regular shape for taking out on the road or trail Easily fits into a jersey pocket or seatpack Features a cast steel body & stainless steel case for durability & strength The replaceable pin (part 985-1) ensures this tool will give long service A loosening slot is incorporated to help release tight links Works on most makes & design of chains&44; including 10-speed versions