Your DUB bottom bracket does not show much of itself on the outside. Therefore, it can be hard to get grip on it. No problem for the Bracketgrip DUB though, effortlessly your can take your DUB cups out or screw them back in. Easy to use and avoids any scratches to your bike frame.Specifications:- Bottom bracket tool compatible with 12-notch 46mm outer diameter cups: SRAM DUB- With kraton handle for a firm and comfortable grip- Extra long: 33cmTechnology:Safe working on your DUB bottom bracket:- Safely loosening or tighten the DUB bottom bracket without damaging your frame of the bottom bracket. The Bracket Grip DUB gives you the grip to safely finish the job.