The screw feature makes it and replace shoe studs with simple tool Suitable for various football field such as natural grasslands, artificial grasslands, and land The replacement football studs thread is 5mm and suitable for most standard 5mm threaded football boot and are easy to use and replace The spikes feature is sharply, which can increase grip and stability of the football shoe on the grass Make from aluminum alloy, it have strong wear resistance and durability, suitable for long terms football training