Feedback Chain Whip This Feedback Chain Whip has a slightly different design than the traditional chain whip. This pliers design allows you to work faster and apply more power more easily. The auto-adjust system ensures that you can grab every sprocket and always have the right size. The chain whip can be used on all types of cassettes from 1 to 12 speed. The use of high-quality forged steel and sturdy rubber handles ensures a lot of durability and a lot of grip. Specifications: Color: black/red Material: metal/rubber