Materials: Shimano doesn't list the materials used

Polyurethane 50%

theMagicshine Monteer 3500s Nebula literally turns night into day

It also has great abrasion resistance with densely knit sleeves as well as stretch cuffs to fit around pads

there are a number of options out there

Muc-Off Wheel and Component Brush netsuite-webdata-created Materials: Shimano doesn't list theClean all areas of your wheels with ease, with this specifically designed Wheel and Component Brush from Muc Off. The brush is shaped and contoured specifically to clean rims and spokes, with nylon bristles and an impact resistant handle for comfortable use.