About Syncros Cassette Lockring Tool 
The Syncros Cassette Lockring Tool is an essential addition to any tool box. It's a universal tool that fits 12-spline Shimano/SRAM style cassette lockrings, as well as some disc brake lockrings. Easily remove and install cassette lockrings with this durable and versatile tool.

Specifications
Range of Use: 12-spline cassette lockrings from Shimano, SRAM, SunRace, SunTour, Chris King and others

About Syncros
Syncros is a bicycle components brand, known for their high end mountain bike parts. Founded by Peter Hamilton and Pippin Osborne in 1986 and originally based in Vancouver, British Columbia, Syncros is now owned by Scott Sports.