The SRAM BB30 English thread adapter presses into a BB30 frame so a standard English bottom bracket cupset can be used in a BB30 frame. Includes the adapter, adapter sleeve installation tool to be used with a standard headset press, retaining compound and complete instructions.
The thing to know about this application is that it is permanent. Once you apply the 'retaining compound' and install, it is not meant to be removed - ever. It will be part of the frame and may void your frames warranty. That bring said, it is a good solution, albeit permanent, for those riders who want to change their frame spec from BB30 to a standard bottom bracket assembly.