The AMMO Two Tier Wheel Brush features durable boar hair bristles for precise wheel cleaning. Featuring a waterproof molded handle, the two-tier brush is specially designed for cleaning rims, lug nuts, brake calipers, rotors, suspension components, and engine bays. The blackboar hair blend offer superior wicking ability to deliver Plum Wheel Cleaner or Brute Wheel Soap for better agitation. The Two Tier Wheel Brush includes a black boar hair outer ring and a tapered "painter brush" black inner bristle for better cleaning in tight areas. The AMMO Two-Tier Wheel Brush is Made in the USA to the highest quality standards and is the quintessential wheel cleaning tool.