Shimano Chain Whips - Ergonomic rubber-coated handle for a comfortable grip - Chrome plated chromoly steel blade for durability and rigidity - Precise and durable chain - 12-speed compatible sprocket remover - Holds 10-12 speed sprockets to remove the lockring when used with TL-LR15 or TL-LR20 - This tool cannot remove fixed gear sprockets due to the position of the chain fixed to the blade