Ultra Soft flagged tip green nylon bristles are ultra safe for all surfaces. Nylon bristles hold water and cleaning solution while safely washing away dirt and grime. Nylon bristles are long wearing, resistant to rot, mildew, alkalis, most solvents and heat. the 2 inch bristles are perfect for reaching into spokes and lugs of wheels. 10 inches in length with a molded grip handle. Recommended for cleaning delicate surface wheels.