Product Description Features:replaces the sprocket with the rear wheel removedthis allows all work to be carried out on the chain and gearscan also be switched due to the special designfor standard dropouts and thru-axle mountings up to 12 mmManufacturer Number:DH-1 Contents:1 x 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