These track spikes are convenient for you to have different sports activities. Made of steel, plastic material, very strong, not easy to deform or break, small size, keep from slipping and avoid having damage to the track. Easy to screw the track nails into the shoes and take out by wrench, which is convenient to replace the spikes. Features - Color: Golden -Material:Steel, Plastic -Size(Wrench):7.50X4.50X1.40cm/2.95X1.77X0.55in -Size(Spike):1.30X0.80X0.80cm/0.51X0.31X0.31in -Jump spikes are suitable for many occasions, such as school running training, running, etc. -Sturdy shoes sole spikes, perfect for track, field and competitions, offer good grip for athletes, let them have good using feeling. -Manufactured with steel, plastic materials, practical and durable for a long term use, the track spikes are very useful for people who like sports. -Tiny size, cone shape design, better performance, more firm and stable, easy to install and remove by using the equipped spike wrench. -Enough quantity of the spikes for shoes for you to replace and use, can be also shared with family members or friends. Package list: Spikes 1 x Wrench 1 x Box