Description: 【Versatile Use】: These track and field spikes are great for use on tracks, triple jumps, hurdles, and middle to long distance runs (800-1000 meters). They are an essential tool for improving your performance in exams. 【Lightweight and Reliable】: Made from steel, these track and field running spikes are not only lightweight but also reliable. They can withstand 2-3 uses, making them a reliable choice for athletes 【Product Dimensions】: Each track shoe spikes measures 0.7 cm/0.28 inch in length with a thread diameter of 0.5 cm/0.20 inch. This size is ideal for providing the necessary grip without causing discomfort during use 【Professional Training Tool】: The track shoes spikes for short running can professionally provide better traction and speed on the field 【Package Contents】: Each pack contains 16 metal track shoe spikes for short running, ensuring you have enough to replace any worn out ones during your athletic activities Specification: Material: Steel Size Chart: Nail Length 0.7 cm/0.28 inch Thread Diameter 0.5 cm/0.20 inch Package Includes: 16 Track Spikes(4 Pack) Note: Please allow slightly errors 1-2cm differences due to manual measurement.