The brush is made from non scratch Nylex memory nylon bristles which will become softer in warmer water. This allows the brush to loosen and remove dirt without scratching the wheel. The brush is also chemical resistant so it can be used with all cleaners.
The tip of the brush has vinyl bonded on to it and the shaft is coated in vinyl so it will not scratch the metal. The brush has a rubber knuckle guard to protect your knuckles and your wheels.
The smaller brush is 12" long.
The bristles have a memory design which allows them to always return to their original shape.