Description: 【Versatile Use】: These track spikes are great for pp tracks, suitable for all surfaces including dirt, grass, cross country, and ice, Ideal for short distance track events like 100-400m runs on synthetic tracks. 【Material】: Spikes are made from steel with gold coating on the surface. Quality steel material offer durability and resistant to wear and tear. 【Lightweight】: Made from quality steel through heat treated, these spikes offer maximum durability. They can be suitable for daily training, exams or competitions. 【Product Dimensions】: Each spikes measures 7mm in length with a thread diameter of 5mm. The replacement shoes spikes, which can install quickly, easy to use. 【Package Contents】Each order includes 12 steel shoe spikes. The track spikes provide traction on soft ground and increase stability and balance. Specification: Material: Steel Size Chart: Spikes Length: 7mm Thread Diameter: 5mm Package Includes: 12 Track Spikes(2 Pack) Note: Please allow slightly errors 1-2cm differences due to manual measurement.