Crack & crevice detail brush is gentle (leaving no scratches like a toothbrush or nylon brush) . Use after polishing and waxing to remove residue with little or no effort. On stubborn residue, use in conjunction with your favorite detail spray. Great on the interior of your car. The compact size and soft horsehair bristles make this brush ideal for those hard to reach areas on your console and dashboard. Made in U.S.A. (premium quality).