The IceToolz Shimano Cassette Tool with 12mm Guide Pin stabilises the tool with its guide pin and is compatible with most major brands such as Shimano and SRAM. It can be used with a ½ inch two way rachet or a 21mm spanner.Utilises a 12mm guide pin to stabilize the tool for through-axle hubsFor Shimano CS, SRAM, SunRace, Chris King compatible cassettes and Shimano Centre LOck disc brakesThe guide pin prevents the tool from slipping out of the spline of the cassette lock-ringUse with 1/2" two-way Ratchet Wrench (#53R4) or 21mm spannerProduct dimensions: 7.5 × 2.5 × 2.5cmWeight: 0.095kgColour: Black, SilverMaterial: Cr-V Steel