Product Description With the light but robust [tool], magnets hold the supplied inserts in place. Specifications: Function: installation & removal of bottom brackets, removal & installation of cassettes, installation & removal of Center Lock lockrings Tool Type: special tool Type: ring wrench Drive: 1" hex Compatibility: Hollowtech II, ISIS, Center Lock, Race Face Cinch Size: 8 mm, 16 mm Technical Information: Material: aluminium (7075-T6), steel (CrMo 4140) Compatibility: ring wrench end for Hollowtech II bottom bracket with 16 teeth and 44 mm outer diameter socket wrench end for 1" hex inserts Cinch and ISIS spline use for older ISIS bottom bracket and Race Face Cinch chainrings cassette lockring insert for lockrings of cassettes and Center Lock brake rotors 8 mm hex insert for removing pedals and other applications 16 mm hex insert for Race Face Cinch cranks, frame pivots and other applications Features: bottom bracket tool for Hollowtech II with magnetic 1" hex drive four ultra-light, CNC-machined inserts of hardened, nickel-plated steel included compact and light for on the go robust enough for everyday use wrench can also be combined very well with the Wolf Tooth BBS bottom bracket tool Made in the USA Manufacturer Number: FWIKIT01 Contents: The Wolf Tool Components Pack Wrench and Inserts Kit bottom bracket tool set includes: 1 x Wolf Tooth Components Pack Wrench bottom bracket tool 1 x insert for Cinch and ISIS 1 x insert for cassette lockrings 1 x 8 mm hex tool insert 1 x 16 mm hex tool insert Weight: red-silver: 333 g Manufacturer: Wolf Tooth Components 6400 W 105th St Bloomington MN 55438 USA info@wolftoothcomponents.com Distributor: Cosmic Sports GmbH Leyher Straße 47 90763 Fürth Germany info@cosmicsports.de