This is the Tony's Screws Starter Box Lift Kit. This kit features tall rubber feet that raise the starter box up for truggy tire clearance when on the box. Includes (4) 21mm rubber feet and mounting hardware. Should fit most starter boxes.
Note: When you install the feet, only tighten the screws and nuts a little bit at a time until the feet are not loose and spinning around. If you over-tighten the bolt and nut you can crack the feet.