Features: Dual-sided bike pedal function meets your different demands. One side is a traditional platform,suitable for your ordinary shoes. The other side is replacement for most mountain bike SPD pedals system,suitable for your cycling shoes with 2-bolt cleat system. 1 pair of provided cleats replacement for most mountain bike SPD pedals system. Made of strong material,wear-resistant and lightweight to use. Wide platform and hollow design reduces the chance of slipping off and improve pedaling efficiency. Anti-slip stainless steel nails provide excellent grip and control. 3 sealed bearings ensure the stability and reliability of the pedals. Dustproof ring and cap protect the bearings from water and dust. Installation is super easy with marking. L for left pedal,R for right pedal. Specification: Model: CX-150 / CX-156 (optional) Size: 120*102mm / 120*110mm Material: Aluminum alloy + Stainless steel + Chrome Molybdenum Steel Spindle: 9/16 inch Weight: approx. 420g / 410g (for a pair) Package weight: approx. 595g / 592g Package List: 1* Pair of Pedals 1* Pair of Cleats (replacement for most mountain SPD pedals system) 4* Screws 3* Washers 1* Wrench