Bicycle brake shoes 1.On the front of Brake Shoe to mount a changeable Scraper, can remove effectively any muck, mud, water drops and so forth bad condition environment, reduce and clean any kind of interference before the brake system operated, to get more efficient and safer brake performance. 2.This item has been tested by Cycling & Health Tech Industry R&D Center, the result was more effective than normal size without scraper. Standard Lot Size(Carton), 22kg, 2.2cuft