Screw type chain toolDesigned to make chain removal, installation, and adjustments simple, safe, and comfortableReplaceable bridge and adjustable bridge positioning ensure compatibility with all current and future chains from single to 13-Speed and beyondS2 tool steel pin freely spins on a ball bearing ensuring long life, lower effort, and better alignmentIntegrated guide pin sheer slot, replacement pin stored in handleMaterial CompositionStainless Steel & Composite Material