Make of Aluminum Alloy materials, Light weight, Highly strength. Good impacts resistance, Strong resistance. Seal bearings, . The Nonslip screws also provide a grip, better for Cycling. Wide and large platform ensures you more ridings stability, which perfect for your mountain Bicycles. Suitable for mountain Bicycles, road Bicycles, exercise Bicycles and fold Bicycles. The large area designs of these pedals provide a smooth and comfortable ride.