KMC Missing Link 6/7/8 Speed, Reusable, 6 Pairs, KMC Chain Link for KMC & Shimano 6/7/8-Speed Chains PRECISE SHIFTING & COMPATIBILITY - KMC Missing Link 6/7/8 Speed 7.1mm link fits all KMC, Shimano & Sram 6/7/8 speed chains. NO TOOLS REQUIRED - Fixing your chain on a ride can now be done by hand, no tools required at all. EASY TO INSTALL - Super easy to install so if you break a chain out in the middle of nowhere, you won't have to walk your bike back anymore! REUSABLE - KMC Missing Link 6/7/8 Speed is reusable so you don't need a new one every time you disconnect your chain. NOTE: 6 Pairs (12 pieces) of KMC Missing Link 6/7/8 Speed packed in OPP Plastic Bag for shipment, no wasteful packaged.