Provides precise cue tip shaping and scuffing to give players ultimate ball control. Unique design provides automatic radius on shaper side. Scuffer side prevents excessive wearing of tip and to better hold chalk ./If you are looking for a simple tool to shape your tip and rough it up to hold chalk, the Cue Cube has you covered. One side of the tool shapes your cue to a nickel radius and the other side scuffs up the tip for optimal chalk retention. This is a simple tool that brings you effective results in ball control and in lowering mis-cue potential.