THE NIKE ZOOM RIVAL S 5 MEN'S TRACK + FIELD SPRINTSPIKES - OBSIDIAN/GREY OFFER YOU AN ULTRA-LIGHTWEIGHT DESIGN WITH THE TRACTION YOU NEED TO GAIN MAXIMUM SPEED. ENTRY-LEVEL SPRINT SPIKE DESIGNED FORTHE HIGH SCHOOL ATHLETE. 7 REMOVABLE SPIKES ENCASED IN A NYLON PLATE FOR OPTIMAL TRACTION ON MANY SURFACES.