Bicycle pedal material: strong nylon fiber + aluminum alloy surface, high-strength Cr-Mo spindle, with shock-proof, wear-resistant and corrosion-resistant properties. The pedal has 3 built-in bearings Pedal size: 4.80 (L) * 4.25 (W) inches, 0.97 pounds per pair, more fit to the sole, large pedal bicycle pedals provide a more comfortable riding experience, making riding safer Easy to install: L on the left; R on the right. Sealed bearing bicycle pedals protect the spindle from water and dust, thereby avoiding noise and other problems, allowing you to enjoy the fun of riding in the rain or when climbing mountains Non-slip spikes: The non-slip spikes on both sides make the pedals more secure and fix your feet in place. Even if they are covered with thick mud after a muddy ride, you don't have to worry about your feet slipping off the pedals Standard: 9/16 inch spindle suitable for BMX, MTB, mountain bike, hybrid bike, vintage bike, cruiser, cross country bike, off-road jump bike, folding bike, road bike - touring bike, track bike, unicycle, city bike 1