Description: 【Versatile Use for Track Spikes】: Specifically designed for the maintenance of track and field shoes, ensuring optimal performance during athletic events 【Durability and Suitability】: Ideal for middle to long distance running, these track shoes spikes are reliable enough to last approximately two uses. greatly suited for synthetic tracks 【Lightweight Design】: Exceptionally lightweight, making them suitable for events ranging from 400m to 1500m, as well as triple jump and hurdles 【Material】: Constructed from a combination of steel and plastic, providing a balance of strength and flexibility needed for competitive sports 【Package Contents】: Includes 20 track spikes with a spikes thread of 5 mm and 1 wrench measuring 6.3 cmx4.3 cm/2.48 inchx1.69 inch, offering everything you need for quick installation and adjustments Specification: Material: Steel Plastic Size Chart: Spikes Thread 0.5cm/0.20inch; Wrench 6.3cmx4.3cm/2.48inchx1.69inch Package Includes: 20 Track Spikes 1 Wrench Note: Please allow slightly errors 1-2cm/0.39-0.79inch differences due to manual measurement.