Description The pin can increase the friction between the sole and the ground, prevent slipping, and improve the balance of traction. Metal material, light weight, good elasticity, prevent rust and corrode. Suitable for plastic track, 100-400 m sprint, long jump, running, outdoor sports activities, etc. Features -Material: metal -You will get enough track spikes for meeting your replacement demands and can satisfy your daily usage. -Lightweight, prevent rust and corrode, providing long servicing life, more suitable for competitions to achieve good results. -Each shoe spike measures the length, which is the general size for most running shoes to use. -These spikes are designed with needle shape for increasing the friction between shoes and ground. -Except for track and cross country, it is also suitable for running and other outdoor sports activities.Package list: 32 x track spikes