Features: nylon composite material, light weight and With anti-skid block and anti-skid design, it is not easy to slip. Off-center balance for easy starting, especially beginners. Suitable for M520, M540,M8000,M9000. Contact us if you have questions，we will try to serve for you. Specifications: Color：Black Size：9.2x6.3cm/3.62x2.48in Note: Please allow 0-1cm error due to manual measurement. Make sure you do not mind before you bid. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package includes: 1 Pair Platform Pedal Adapter.