Product Description PREMIUM MATERIALS: Our semi-metallic copper brake pads contain over 30% copper fiber. Quiet and provides better heat dissipation and better wear resistance Superior power: Bicycle brake pads provide flexible and powerful braking on smooth roads and highways Safe and reliable: Even if the brakes run continuously at high temperatures, the brake pads are not easily twisted or deformed on the bike, allowing for maximum performance and stability in dry or wet environments Compatible with multiple models: These disc brake pads are suitable for different braking systems: Shimano M315, M355, M515, M515-LA-M, M525. Nexave C501, C601, M375, M395, M415, M416, M446, M465, M475, M485, M486, etc. Package includes: Set of 1 pair of semi-metallic copper bicycle brake pads (Each pair comes with 2 brake pads, 1 brake pad, metal lock, comes with 1 metal chip), suitable for quick replacement and longer service life 1 pair of disc brake pads, more efficient and responsive during braking High quality brake pads: our products are tested and controlled to be free of asbestos, iron and harmful substances Function: The bra is beautiful, the bra has good braking effect, no noise, durable, safe, stable, convenient and comfortable Note: 1. It is generally used in high temperature/humid/dusty environments during production, and the piston clearance is not horizontal. In other harsh environments, the probability of wear is high. 2. Under normal circumstances, the surface of the disc is very bright and becomes a mirror surface, making the disc intact. 3. There are friction marks on the surface of the disc and it cannot be locked in time. If your disc water brake makes a squeaking noise, you should replace it with new brake pads and discs. All product information