1.PEDAL ADJUSTMENT: You can adjust the pedals according to your needs. No matter how you are, you can find the correct starting point through adjustment and fix it by the central guide. 2.STABILITY: The central guide rail is made of aluminum alloy slotted with two slidingin anchor plates to ensure ground stability. Its firm gripping ability allows you to start faster without worrying about starting a run quickly causing sideslip and affecting your performance. 3.MULTIFUNCTIONAL: Can be used for plastic runway and cinder runway. There are two kinds of nails, including builtin set spikes and nails specially used for cinder track, which is convenient for different runways. 4.APPLICABILITY: Its smoothness and fixability are suitable for a variety of occasions, whether in schools, training grounds, plastic tracks, or in cinder tracks and grass, it has a strong gripping ability, of course, it is also used for pedaling with spikes.