nanyu;

This KMC Missing Link 6, 7, 8, 9, 10, 11 Speed is reusable (KMC Missing Link 11 Speed is non reusable) quick release chain link for use with KMC chain, Shimano chain or SRAM chain.
These are NEW and AUTHENTIC KMC Missing Link. (There is no used missing link in the market)
KMC Missing Link has the same feature as SRAM Power Link.

- Reusable: YES for 6, 7, 8, 9, 10 Speed
- Reusable: NO for 11 Speed

Always buy from MattDeal to ensure you are buying genuine and authentic KMC Missing Link because our items are FULFILLED BY AMAZON - FAST SHIPPING.

Cheers and Ride Safe!