Feature: 1. Close loop designed, eliminate opening deformation, straight tooth shape, high utilization ratio of occlusion. 2. High strength aluminum alloy, high hardness and sturdy, durable and long service life. 3. Tight biting, not easy to slip teeth, frosted polishing, precise line cutting, not damage bottom bracket. 4. Bottom bracket wrench, mountain bike and road bicycle hollow crankset disassemble tool. 5. Professional manufacturing, stable characteristics and high reliability. Specification: Condition: 100% Brand New Item Type: Bottom Bracket Wrench Material: Aluminium Alloy Color: Black Quantity: 1PCS Weight: Approx. 50g Wrench Thickness: Approx. 3mm/0.12inch 1. BB44: This is the most common type of wrench Most of the bottom bracket in the market of this specification 1. For BB51/BB52/BB70/BB71/RS500/MT500 2. For SRAM GXP Series 3. For PROWHEEL Series Bracket Wrench 4. For IXF Series And most of the 44MM outside diameter on the market 2. BB46 For SRAM DUB thread bottom bracket special purpose wrench Package List: 1 x Bottom Bracket Wrench