Review on 🚲 Inkesky 4 Pairs (2 Cards) Reusable Quick Link for Bike Chains - Compatible with Shimano, KMC, Campagnolo, and SRAM by Jeff Sorensen

This is a link that can be used to reattach a broken chain or connect a new chain. It should not be reused. It must also be installed with the correct rotation. They can be installed by hand, but removing them by hand is a bit more difficult. I suggest getting a removable link tool that will make installing and removing easier. In my opinion, a 12-speed chain is vulnerable, and keeping one of those links in a pannier along with a tool is cheap insurance.