Park Tool designed the Tilting Base specifically for use with the Park Tool TS-2.2 and TS-2 Professional Wheel Truing Stands. It allows for adjustment of the truing stand 20 degrees forward or backward for comfortable use at any bench height. Park ToolTSB-8Truing Wheel Stand Base Features The perfect mounting for the Pro wheel Truing Stand 20 degrees of forwards and backwards tilt allows you to work in the most comfortable position Small part bins in the base for items such as spoke nipples Slotted holders for spoke nipple wrenches Tabs and holes allow for secure mounting to a flat surface such as a bench Made in the USA and covered by Park Tool's legendary limited lifetime warranty