lightweight aluminum backing plate and high-performance semi-metallic compound reduce weight by nearly 50%, perfect for cross-country riding. For: SRAM Code R, Code 2011+/Guide RE 3X longer life than normal semi-metallic disc brake pads. Ultimate featherweight. Great heat dissipation. Excellent stopping power. Color: silver Material: resin + aluminum alloy Package Contents: 4 pairs * bicycle disc brake pads Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.