Make of aluminum alloy, Light weight, Highly strength. Good impacts resistance, Strong corrosions resistance. Seal bearings, dustproof. The Nonslip screws also provide a grip, better for Cycling. cats head shape large platform ensures you more cycling 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, and the ball bearings provide you with a more comfortable cycling experience.