Meguiars Supreme Wheel Brush Medium (Wool) Supreme Wheel Brush - Medium Meguiar’s Supreme Wheel Brushes don’t have bristles but a microfiber head The soft structure prevents scratches, but you thoroughly clean every type of rim. The Wheel Brush has a longer micro-fiber head than average wheel brushes have and doesn’t contain wire or metal parts that can damage the rims. The Supreme Wheel Brush Large is 35cm long and has a woolen head of 15cm.