The Single Step( DX0096 Manual)have 6 features as below for your reference.1.High-strength aluminum alloy
2.Durable and light weight
3. The edge of the footstep was rounded 4. Anti-slip design, safe and
reliable
5. The stressed parts are of high strength carbon steel without deformation
6.The surface of the pedal is treated withanodic oxidation, which improves the corrosion resistance, abrasion resistance and hardness.