Reliable Construction: Made from wear-resistant hard steel, these spikes are designed to withstand frequent use without easily wearing down, ensuring long-term performance for your track shoes Enhanced Traction: The track shoe spikes provide grip on various surfaces, making them ideal for improving skills and speed during sprints and regular training sessions Versatile Use: Well suited for synthetic tracks and short-distance sprints ranging from 100 to 400 meters, these spikes cater to both competitive and everyday practice needs Comprehensive Set: This package includes 50 track spikes along with a convenient wrench, allowing for easy installation and removal of spikes as needed Optimal Size: Featuring a spike thread size of 5 mm and a wrench measuring 8 cm x 5.4 cm (3.15 in x 2.13 in), this set is designed to fit most standard track shoes seamlessly, providing a secure fit for enhanced performance Specifications: Material: Steel, Plastic Spikes Thread Size: 0.5 cm (0.20 in) Wrench Size: 8 cm x 5.4 cm (3.15 in x 2.13 in) Package Includes: 50 Track Spikes 1 Wrench 1 Storage Box Note: Please allow slight variations of 1–2 cm (0.39–0.79 in) due to manual measurement