Wheel Woolies Caliper Spoke Brush 12 in. Used to provide easy and effective for cleaning the back of the spokes on your wheels. Combines an ultra-soft fiber head with a 45 degree angle handle to reach behind your spokes. 100% metal free design makes is ideal for use on the most delicate wheel surfaces. Generous size of the ultra-soft head makes cleaning even the widest spokes a breeze. Very similar to the classic Wheel Woolie design except with an angled handle.