Features: 1.Three-bearing Design 2.Wear and Impact Resistance 3.Ultralight, Portable 4.Column Nail Cleat, Not Easy to Slip 5.Wide Tread, Save Effort Specifications: Color: Black/Res/Silver (Optional) Material: Aluminum alloy (Body) Chromium molybdenum alloy steel(Axle) Size: 125 * 100 mm / 4.9 * 3.9 in Weight: 400g/ 14.1 oz Package size: 15 * 15 *10 cm/ 5.9 * 5.9 * 3.9 in Package weight: 600g / 1.3 lbs Packing List: 1 * Pair of Bike pedals 1 * Set of installation tools 1 * Set of pedal accessories Note: Due to manual measurement, there is a 2-3cm error in the product size. Please specific to the actual.