Great installation and removal tool kit for your bike bottom bracket. Features: Constructed of aluminum alloy and stainless steel, very durable. Suitable bearings: 6805 (25x37x7), 6806 (30x42x7). Suitable for removing BB86/BB30/BB91/BB92/PF30 press-fit type bottom brackets, and installing most hollow bottom bracket bearings. Note: The functions of the simple version is the similar to the professional version and most accessories are the same. The professional version is equipped with stainless steel handle that makes it easier and stable for installing. Specifications: Material: Aluminum alloy + Stainless steel Version: Simple version / Professional version (optional) Package Size: 27.2 * 17 * 5.2cm / 10.7 * 6.7 * 2.0in Package Weight: 710g - 810g / 1.6lb - 1.8lb Package List: 1 * Bottom Bracket Install and Removal Tool Kit