Footful Metal 12Pcs Replacement Running Spikes for Sports Track

Description: Suitable for all surfaces: tartan, asphalt, dirt, grass, cross country, ice, etc. Recommended for all track and field disciplines. Made from high quality heat-tested steel for maximum durability. 4 different styles available: pyramid, needle, tartan and Xmas tree. The screw diameter is 5mm. The total lengths range from 12-18mm. Specification: Material: Steel Needle: diameter: 5mm, screw length: 5mm, spike length: 13mm, weight: 26g 12pcs weight Tartan: diameter: 5mm, screw length: 5mm, spike length: 8mm, weight: 23g 12pcs weight Pyramid: diameter: 5mm, screw length: 5mm, spike length: 7mm, weight: 20g 12pcs weight Xmas Tree: diameter: 5mm, screw length: 5mm, spike length: 8mm, weight: 24g 12pcs weight Package Includes: 12 Pieces Steel Shoe Spikes Note: Please allow 0-3mm error due to manual measurement.