This set includes 3 different sizes of brushes to suit different wheel types and sizes to provide great cleaning action through the spokes and deep into the barrel of the wheel. Also great for getting around the caliper and dust cover. They have a durable handle and a dense absorbent synthetic wool microfiber brush end.  Each brush is also flexible.
Sizes are: 
1. Small 31cm Long x 4cm width
2. Medium 34cm Long x 4.5cm width
3. Large 48cm Long x 6.5cm width