This is the Park Tool CT-5 Mini Chain Brute Chain Tool. This small chain tool goes anywhere and actually performs like a shop quality tool. The fine thread, special āVā- shaped handle, and super strong replaceable pin make chain removal and installation a breeze.
Features:
- Works on derailleur chain including 10, 9, 8, 7, 6 and 5-speed chains
- Shelf for loosening tight links
- Perfect take-along chain tool at only 77 grams
- The CT-5 is about 60mm tall, 55mm wide and 15mm thick