High quality Metal Material: This bike flat pedals was made with CNC integration aluminum alloy material,give you a sense of security. The spindle was made of chrome-molybdenum steel material, which is stronger than ordinary steel and features better load bearing performance,Size:4.7inch 3.6inch 0.7inch Weight 0.36KG.Dust Proof Anti Slip: This bicycle pedals feature a special sealing design that effectively prevents dust and moisture from entering. At the same time, the anti slip design provides good grip, ensuring your riding .Foot Grabbing Anti Slip Metal Nails: This bicycle pedals are equipped with anti slip metal nails, which can ensure that your feet can be firmly fixed on the pedals in any situation, avoiding slipping.Effort Saving Grip Design: This bicycle pedal adopt a special grip design, which can make it easier for you to step on and effectively reduce physical exertion.Strong Compatibility: This Bike pedals are compatible with 9/16 inch bicycle pedals and can be used for various types of bicycles, including mountain bikes, road bikes, etc BMX, etc