Description Provide good grip for athletes, these shoe spikes can increase flexibility and speeds, perfect for track and field running, long jump and running. Using steel, plastic materials, with high hardness, easy to install, not easy to fall or lose when running. You can also remove them easily by the help of spike wrench. Features -Color:Silver -Material:Steel, Plastic -Size(Wrench):7.50X4.50X1.40cm/2.95X1.77X0.55in -Size(Spike):1.30X0.80X0.80cm/0.51X0.31X0.31in -These track spikes can provide excellent grip for athletes, increasing flexibility and speeds, achieve the purpose of track and field sports, long jump and running. -Spikes will add the friction between the shoe sole and ground, thus can resist skid and improve your running speeds. -Sufficient amount of track spikes for sports to meet your track and running training needs. -Made of steel, plastic materials, with good workmanship, these spikes for track shoes are not easy to deform or break. -Small size, Easy to screw the track nails into the shoes, and convenient to take out by using the spike wrench.Package list: 50 x Spikes 1 x Wrench 1 x Box