A double featured tuner. With a nylon brush on one side and cork on the other. Use the brush for cleaning your base before waxing and to expose the structure after waxing. Use the cork after rubbing on wax or in extremely cold conditions.
Always use brush in the same direction, working from tip to tail.
Use after applying rub-on wax. The cork smooths and creates friction to help the wax getting deeper into base pores. Finish by brushing.
Cork can also be used to apply powdered race waxes.