1、Material: Stainless steel material is corrosion resistant and rust resistant, newly upgraded precision polishing processing, vacuum plating has good corrosion resistance, increased strength, and higher end.2、CNC Machining: The CNC machined surface is flat and smooth, the brakes have no abnormal noise, and the height is flat, excellent riding accessories.3、2MM Thickness: The measured thickness is 2mm, the thickness is strengthened and not easy to deform, which will guarantee your riding.4、Hollow Design: Hollow edges increase the friction coefficient of the disc, even low end cable pull disc brakes can also match with good braking effect, strong heat dissipation.5、Applicable Models: Hollow lightweight brake discs has colorful appearance, stylish and generous, suitable for folding bikes, electric vehicles, electric scooters, etc.