100% Merino Wool Wheel Brush Kit Provide the safest and the most effective wheel cleaning tool. 100% metal free Wool Wheel Brush Kit to remove dirty and dusty of braking rods and won't damage the wheel or expensive retainer of car. With dense water absorbability, superfine wool will effectively use cleaner make more bubbles. Please irrigate with flowing water after using residual detergents, natural drying, shaking or use wool brush nursing can make the hair fleeciness up again. Attention: Natural sheepskin has the certain service life; proper care can be prolonged using time. One brush can service 30 to 50 cars. * Don't be touched with high temperature, strong acid and strong detergent. * Don't be sun drying and baking, don't touch the rain. * Don't use strong strength to tear that maybe cause fur separation or collapse. * Don't be soaked in water for a long time. Please clean clearly and natural dry if you finish the cleaning. * Two brushes could be used in the way that one is wet and the other is dry for mixed using.(The wet one is use bubble to remove the dirty and the dry is for cleaning the water).