1. Material: carbon steel for the main body, chrome vanadium steel for the ejector 2. Applicable: single speed/6/7/8/9/10/11/12 speed chains 3. Features: high-strength ejector is not easy to damage, and the detachable ejector is convenient for replacing chains of various specifications 4. Precision thread welding, exquisite craftsmanship, more stable use 5. High-strength pin design, not easy to damage, detachable and replaceable, more convenient to use 6. Size: about 91x61x18mm 7. Weight: about 136g
