Item Type: Bike Pedal Extender Weight: 57g/2oz Material: Steel Color: Gold1Bicycle Type: Suitable for bicycle threaded pedals with a 9/16 inch mandrel, extending the pedal position outward by 20 mm. 2Improved Pedaling Efficiency: By extending the pedal axle, these extenders provide a more natural and comfortable pedaling position, reducing strain on the knees and improving power transfer. 3Durable Construction: Crafted from steel materials, these extenders are built to withstand the rigors of regular use, ensuring long lasting durability and reliability. 4Easy Installation: These pedal extenders are designed for easy installation, allowing riders to quickly and hassle free attach them to their bike pedals, enhancing the overall riding experience. 5Useful Accessories: Protect the crank from damage during foot replacement, and extend the shaft core to act as a lever for less effort. 2 x Bike Pedal Extender 4 x Gasket