The product is a set of 2 pairs of sintered metal bike bicycle disc brake pads compatible with Shimano brand. Suitable for universal bike types, these semi-metallic pads are designed for stainless steel rims. Each pad has dimensions of 3.6cm in length, 2.3cm in width, and 0.5cm in height, weighing 15g. The black pads come as a set with brake pad included, making them a reliable choice for Avid BB5 front and rear disc brakes.