Product Material: steel nails Size: 7*5MM Style: pointed nails Color: gold, silver Package content: 100*shoe spikes + 1* nail remover 1.GOOD MATERIAL: Made of high quality stainless steel, which is extremely sturdy and rustproof, our track spikes are very useful for people who like sports. 2.Easy to use: The attached tip wrench could help you screw tip tips into the soles of athletic shoes, while running or long jumping, the track spikes help increase the friction between shoes and the ground to prevent falling off. 3.GOOD MATERIAL: Made of high quality steel nails, which is extremely sturdy and rustproof, our track spikes are very useful for people who like sports. 4.Strong Practicality: The athletics tips are very useful and practical for athletes to avoid falls and injuries. They are ideal for long jump, dash and athletics sprint.