The PRO Team Chain Whip is a 12-speed compatible cassette installation and removal tool, intended to be used with the Pro Team Lockring tool.

12-Speed compatible cassette removal tool
Constructed from extra durable heat-treated steel with an alloy sleeve for increased stiffness
Laser cut for optimal precision and accuracy
Ergonomic dual compound grip
Longer design for increased leverage
Designed for use with the PRO Team Lockring Tool
Also for Hollowtech II BB removal and installation
PRO Team Tools are 12-speed compatible