Item Type: Pedal Platform Adapters Material: Aluminum Alloy Application: For Spd Road Vehicle System, For Spd Mountain Bike System, For Keo Road Vehicle System Product Size: Approx.90X90Mm/3.5X3.5In Gross Weight: Approx.143G/5.0Oz 1Aluminum Material: Made Of High Quality Aluminum Alloy Material With High Strength And Wear Resistance, Having Good Performance For Long Service Life. 2Non Slip Design: The Use Of Nail Type Non Slip Nail Design For A Strong Grip Which Will Make Your Feet Stay With A Stabler State, So That Your Outdoor Cycling Will Be Safer. 3Main Function: Has The Function To Make Lock Step Pedal Change Into Flatten Step Pedal After Installation Within Short Time, Providing A Satisfying Using Experience. 4Application Range: Has The Feature Of Porous Design, Suitable For Spd Road Bike System, For Spd Mountain Bike System And For Keo Road Bike System, Suitable For Daily Use. 5No Burden: Aluminum Material Makes These Pedal Platform Adapters Have A Light Weight, Will Not Increase The Burden Or Cause Additional Energy Waste. 2 X Platform Adapter Pedal