Lightweight Aluminum Black Bike Pedals For MTB Road BMX Bicycle Size: 5" x 4" x 1" - comes in pair Material: Lightweight aluminum alloys all CNC precision process, ensure the assembly precision. Advantage: Big platform, with anti skid nails,firmly grip your shoes. Excellent performance, durable. Installation: The pedal axis screw distinguish left and right, "R" "L" mark the direction of right and left. We suggest to use 15mm professional open end wrench to install the pedals. Suitable for: BMX, mountain bikes, road bikes, fixed gear bikes, etc.