3/8" black stainless steel pyramid spikes / cleats. Contains 14 spikes in sturdy resealable bag. For outdoor track and field and cross country surfaces. Check out other sizes and colors. Click the blue ecospikes link above. Standard thread fits all manufacturers' cleats. No wrench included. The leading track and field and cross country spike. Stainless steel for superior wear resistance and tighter fit than chinese competition. Made in Europe.