In order to achieve a complete mirror surface, a special buffer is required to purchase separately from the solution set. Use the buffs that fit your double action polisher or multitool. Urethane sheet for polisher plating system that can be cut to desired size (buff size: 3.9 x 3.9 inches (100 x 100 mm), velcro 2.0 x 2.0 inches (50 x 50 mm).