Hard-anodized color， CNC machined PTFE-coated hardened alloy 7075 and 6061-T6 The lightweight aluminum alloy material is and improves the overall performance of the shock absorber. Aside from the great looks, the aluminum alloy will not flex as much as plastic under stress or during high ambient temperatures. Compatible with: brand name: FOR FMS 1:18 FOR CHEVROLET K10 RTR 1:18 FOR ARIZONA 1:18 FOR FJ CRUISER 1:18 FOR Toyota Hilux 1983 RTR Pickup Trucks 1:24 FCX24 Note: Check your specific model's manual for compatibility or contact us.