Park PRS-33 Electronics Upgrade Kit. Includes a new tray/motor shroud USB ports and oversized buttons to upgrade a Park Tool PRS-33 or PRS-33 AOK into the PRS-33.2 version controls and electronics.
Other customers have also bought:
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.