We want a do-it-all chain tool that has us covered in a breakdown, and that's why we're turning to Topeak. The brand crafted the Universal Chain Tool to be compatible with single and multi-speed chains up to 12 speed. It includes a chain hook and a chain pin breaker for our convenience and packs up small for easy storage.A Universal Chain Tool that can do it all with six functionsIncludes a chain hook and chain tool made of stainless and CrMo steelThe hardened steel tool is highly durable Secondary chain link fence and chain pin breaker includedWeighing in at under 85g for a lightweight toolMaterialstainless steel, hardened steelCompatibilitysingle-speed, 8, 9, 10, 11, 12 speed chainsClaimed Weight82gActivitybike maintenanceManufacturer Warranty2 years