Material: Iron. Color: Silver. Package: 10pcs of M8x20mm Bolts(Other accessories are not included). Size: M8 x 20mm. Please attention: Due to manual measurement , there may be 0.1-0.3cm deviation exist,hope you can understand. Description: - Replaces bad screws of the brake disc rotor. - Lightweight & anti-rust. About color: There are slight difference between the picture and the real item caused by light brightness,hope you can understand.