[WEAR-RESISTANT MATERIAL WITHOUT NOISE] The bike brake pads made of nitrile rubber has no harsh braking sound, and prevents you from the noise. Our product made of high-quality material is more durable, which is proved as shown in lots of reviews. [LONG SERVICE LIFE]: Tests show that the V brake pads achieves 8,000+ brakes when riding at common speeds of 6-12 mph, or around 4,000 miles on urban roads/1,000 miles on off-road rides. [HUMANIZED DESIGN]: The limit mark on bicycle brake pads prevents brake failure and ensures safety. Please replace when wearing to the market position. There is a clear left and right distinction mark to avoid installation errors. [FITS MOST BIKES]: These brake pads are suitable for bikes over 20', such as MTB - Old School, Cruiser Bike, Folding Bicycle, Mountain Bike, Road Bike, Track Bike, Urban Bike, and all bikes with V-brake. Each set includes 2 pairs of 70mm pads. [CURVED DESIGN & TWILL DRAINS]: Curved design better fits the curvature of the tire, TWILL DRAIN drainage design prevents sand, mud and stones from wearing out the rim, and high-quality nitrile rubber pads have better braking performance, brake quickly even in rain and snow.