Feature: 1. Great Anti Skid Effect: The use of stud type anti skid nail design, strong gripping force, safer outdoor riding. 2. Multi Hole Design: Suitable for SPD road bike system, for SPD mountain bike system, for KEO road bike system. 3. Universal Design: It can be used on every kind of lock pedal, and it is also suitable for changing the lock pedal of other brands. 4. High Quality: Made of aluminum alloy material, not easy to wear, durable, the product size is 90 x 90mm/ 3.5 x 3.5in. 5. Function: The lock pedal instantly becomes flat pedal, which is easy to install and disassemble, and it is very convenient to use. Specification: Item Type: Bike Pedal Platform Adapter Material: Aluminum Alloy Size: Approx. 90 x 90mm / 3.5 x 3.5in Function: The pedal is locked and flattened in one second, which is easy to install and disassemble, and it is very convenient to use. Application: Suitable for SPD road bike system, for SPD mountain bike system, for KEO road bike system.. Package List: 2 x Bike Pedal Platform Adapter Note: Manual measurement has 1‑2cm error.