The HCW-16.3 is a combination 15mm pedal wrench and chain whipUse for both pedal removal/installation and for cassette removalChain whip features improved compatibility with 5-speed to 12-speed mountain and road bike cassettes and freewheelsChain Whip/Pedal WrenchHCW-16.3UPC/EAN/GTIN: 763477003683