Specification:Size: 7mm / 0.28"Nail Head Diameter: 8mm / 0.31"Thread Size: 5.3mm / 0.21"Total Length: 13mm / 0.51"Thread Pitch: 32GFeatures:Made of hard steel, it prevents rust and corroding, has high hardness, is strong and very wear-resistant, is not easy to break, and has a long service life. Helps improve your jumping power while increasing your running speed for better results in competitions.Tapered needle shape track spikes can increase the friction between the shoe and the ground, prevent skidding and ensure safety. It also gives you more bounce when you jump. And will not damage the .Provides bounce and stability for dry terrain such as athletic . General size for most running shoes to use, suitable for all kinds of high jump and long jump.Package Content:5pcs x Track Spikes.
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