What you will get: 4 pairs semi-metal bicycle brake pads, 4PCS stainless steel spring clip and 4PCS stainless steel bolt for convenient and timely replacement and longer service time. Material: Selected copper fiber. anti-wear, good heat dissipation performance, low thermal attenuation. Our products have passed strict inspection and control, and are without asbestos, iron and harmful substances, to increase heat dissipation and wear resistance, running-in time, brake reaction is direct, sensitive; Fast flat road and high speed break through can also achieve stable braking effect and reduce the wear rate of the product. Feature: Fine appearance, good braking effect, noiseless, wear-resistant, safe, stable, comfortable and convenient. Passed strict inspection and control, and are without asbestos, iron and harmful substances. Smooth and powerful braking, adapted for daily use, short-distance riding and XC cross country. Application: Mountain Bike Brake Pads Mountain Bike Brake Pads is used on front or rear brake. Smooth and Reliable Powerful Braking, less noise. Made by Semi-metallic and durable Resin Compound, good heat dissipation and low thermal decay. Used on front or rear brake with low noise and excellent power modulation. Compatible with: For instance, M315, M355 M375, M395, M416, M446, M447, M475, M515, M525, M575, etc, and replacement other same desgin bike brake pads. Low disk wear and comfortable braking feel, stable, durable and excellent power modulation.