This product contains 20 pieces of 7mm needle spikes. It is a no-brand item. Made of stainless steel. Excellent rust resistance! Brand new and unused. A spike wrench is not included. *Some spike wrenches may not be compatible. Generally, Nike spike wrenches can be used without any problems. Compatible with: NIKE Dragon Fly Dragonfly Air Zoom Victory Air Zoom Victory Of course, it can also be used with other spikes. Currently, spikes are widely used in track and field. Among them, needle spikes have pointed tips, making it easier to achieve high speeds. Recommended for everyone from junior high school students to high school students, university students, corporate athletes, and amateur runners.