PARK TOOL CT-5 COMPACT CHAIN TOOLDOES YOUR CHAIN HANG LOWAn unfortunate part of cycling is that stuff happens while you're out on the road or trail. Tires go flat, derailleurs don't shift properly, and chains break. If your chain breaks or you need to replace your chain, you'll want to have a Park Tool CT-5 Compact Chain Tool. It goes anywhere and performs like a shop quality tool. The fine thread, special V-shaped handle, and super strong replaceable pin make chain removal and installation easy. It is compatible with 3/32" 5 to 12-speed chains. Features Perfect to take with you at only 77 grams A loosening shelf for loosening tight links Dimensions: 60 x 55 x 15mm Related article: On The Right Chain Repair Manufacturer's part number: CT-5UPC: 763477002242 | Park Tool | Ct-5 Compact Chain Tool Ct-5, 5-12 Speeds