Features: The bicycles brake Pad is make of coppers fiber wire semimetal sheet, high strength, wear-resistant, good heat dissipation performances and low thermals attenuation, not easily deformed. Semimetal brake Pad have good braking performances, sensitive and stable braking effect, low noise, making your cycling safe. Comes with metal steel spring piece and metal steel spin, the spring clip have good elastics and strong resiliences, pin is smooth and flat, slidings smoothly. Uniform and powerful braking with low noise. Great performances and stability in dry, wet or clumpys environment. Make your cycling safe. Fine appearance, good braking effect, noiseless, wear-resistant, safe, stable, comfortable and convenient. Specifications: Materials: Metal Size: As shown in the picture Package Includes: 1Pair Bike Brake Pad note: Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.