A. This mountain bike brake pad is made of resin material, which is a good choice for mountain bike enthusiasts. It comes in a variety of specifications and is compatible with multiple types of hydraulic disc brakes, including common models such as BB5, M355, M446, and 785, etc., meeting the diverse needs of different users. B. The resin material gives the brake pads excellent braking performance. During the ride, it can brake quickly and stably, providing strong support for riding safety. Whether you are speeding on flat roads or navigating through rough mountains, it can accurately respond to your braking instructions. C. There is a wide range of specifications available for the brake pads, including matching sets suitable for models like BB5, M445, BB7, M785, XTR, JAK, Tektro, and E1. You can choose a product that matches the disc brake model of your bike to ensure a perfect fit and good performance after installation. D. Whether it's for daily commuting, leisure riding, or participating in professional mountain bike races, these adaptable and well - performing brake pads will be a reliable companion on your cycling journey.