Left and right pedal extenders can be easily identified by the unique L and R markings. They can prevent knee strain and rubbing against the rear tire/frame for those with a naturally wide standing posture.What the product can offer is that protect the crank from damage when replacing the pedals, and extend the shaft core to achieve the law of leverage and save effort.Made of chrome molybdenum steel material, the product is durable.The length of the product is 3.2cm, the width is 1.8cm, and the height is 1.8cm.It is suitable for mountain bikes, downhill bikes, folding bikes, racing bikes and so on. The same side shaft can be superimposed.Item Name: Pedal ExtendersMaterial: Chromium Molybdenum SteelColor: Dazzling 9/16" (14mm) Shaft CoreFeatures: Durable, Waterproof, Easy InstallationLocking Method: 15mm Open-end Wrench (Not Included)Size Details: 3.2cm x 1.8cm x 1.8cm/1.26" x 0.71" x 0.71" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:2 x Pedal Extenders (Left + Right)