Positz Freewheel Turner Chain Whip & Cassette Remover Combo Combo includes two important bicycle tools: a chain whip and a cassette remover Chain Whip: Compatible with 7-11 speed chains, 290mm long, comfortable handle and heat treatment designed for long-term use Removal Tool: 12 splines, Suitable for all Shimano cassettes including road and MTB Compatible with 7-11 speed chains (Shimano, SRAM, Campagnolo) Strong, tough and durable