Features1Double clip sides are more convenient to use.Each clip side is compatible with most mountain bike SPD pedals system,suitable for your Cycle shoes with 2-bolt cleat system. 21 pair of provided cleats replacement for most mountain bike SPD pedals system. 3Made of strong material,wear-resistant and lightweight to use. 4Wide platform and hollow design reduces the chance of slipping off and improve pedaling efficiency. 5Anti-slip stainless steel nails provide grip and control. 63 sealed bearings ensure the stability and reliability of the pedals. 7Dustproof ring and cap protect the bearings from water and dust. 8Installation is super easy with marking. L for left pedal,R for right pedal.SpecificationFeatures:Double clip sides are more convenient to use.Each clip side is compatible with most mountain bike SPD pedals system,suitable for your Cycle 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 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:Material: Aluminum alloy + Stainless steel + Chrome Molybdenum Steel Spindle: 9/16 inch Size: 106 * 92 mm / 4.2 * 3.6 in Weight: approx. 384 g / 13.5 oz (for a pair) Package size: 135 * 120 * 85 mm / 5.3 * 4.7 * 3.3 in Package weight: approx. 629.5 g / 22.2 oz Package List:1* Pair of Pedal 1* Pair of Cleat (replacement for most mountain SPD pedals system) 4* Screw 4* Washer 2* WrenchPackage List1* Pair of Pedal 1* Pair of Cleat (replacement for most mountain SPD pedals system) 4* Screw 4* Washer 2* Wrench