Features 1、Copper‑plated back plate is yellowed, solid and durable, and extremely hard; the ceramic material is synthesized, which does not damage the disc, and ensures the service life while being silent. 2、Higher strength, not only light, ultra‑light aviation aluminum alloy backplane, T6 hardened high strength impact resistance, not easy to rust, fast heat dissipation. 3、Better synthesis and modulation of silicon carbide ceramic particles, long service life; excellent noise reduction performance, silent and silent. 4、Fine workmanship, unique arc design of the original spring fits closely to strengthen the elasticity. 5、Lighter, just for faster, the brakes reduce the total weight, and the riding speed can be improved. Specification Item Type: Bike Disc Brake Pad Material: Silicon Carbide Ceramic + Copper Plated Back Plate + Aluminum Alloy Product Size: Disc Brake Guide Pad: Approx. 35 x 30.5mm / 1.4-1.2in Thickness: Approx. 4mm / 0.2in Weight: Approx. 34g / 1.2oz Braking Method: Both Oil and Wire Brakes Can Be Used Applicable Model: M355, M375, M395, M415, M416, M445, M446, M447, M465, M475, M485, M495, M515, M525, etc. For Auriga PRO, for Auriga Comp, for Auriga E-Comp, for Draco, for Draco WS, for HDC, for GEMINI. For Winzip: the Brand's Mechanical Disc Brakes. Package List 2 x Disc Brake Guide Pad 1 x Stainless Steel Metal Shrapnel 1 x Disc Brake Pad Positioning Pin