Colour: Black Material: Resin Size: 3.93x1.84CM Package Contents: 10 * bike brake pads Note: Change the disk if its has black friction track and the disc has gray particulate oil, or it can not be locked when you pressing the brakes or it screeched when water. Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.