Everything you need to break your rubber tires in quickly and easily.
You get one of each:

-SXT Smoke Rubber Tire Break in Compound 16oz bottle
-SXT Sanding stick
-SXT Break in Bit for 12mm hex wheels.

Simply put the break in bit into your drill, then install the tire you wish to break in. Apply Smoke to the tire and start sanding. The Smoke will keep the tire lubricated and rotating easy on the sanding stick.

Must have kit for any serious racer.