Product Description Specifications:Function:cassette disassemblyTool Type:chain whipType:special toolDrive:Hex 1"Compatibility:7- to 12-speed cassettes, 3/32" single speed cassettesTechnical Information:Material:steelHandle Material:CompositeFeatures:chain whip for holding cassettes in place during removalheat-treated to prevent bending or flexhardened pins for keeping the chain in placelong ergonomic handle for more leverage and comfortwith 1" (25.4 mm) mount for ParkTool freehub/cassette lockring toolstotal length 35.5 cm (14" )Manufacturer Number:SR-12.2 Contents:1 x ParkTool SR-12.2 chain whip Manufacturer: Park Tool Company 1185 Eagle Lake Rd Shoreview MN 55126 USA info@parktool.com Distributor: GROFA Action Sports GmbH Otto-Hahn-Straße 17 65520 Bad Camberg Germany info@grofa.com