The Tilting Base fits Park's TS-2 Professional Wheel Truing Stand (sold separately). It allows adjusting the truing stand 20 degrees forward or backward for comfortable use at any bench height. The handy front bins hold Park Spoke Wrenches (sold separately) and other small items such as nipples. Rounded bin corners make even the smallest parts easy to retrieve. The base's reinforced nylon body stands up to heavy use and has holes for mounting to a workbench for stability.