Since 1985, Tallmadge-based NZ Manufacturing has made resistance bands, cords and rehabilitation tools for swimmers, athletes, therapists and everyday fitness users. Its StrechCordz line grew from the ideas of competitive swimmers, while MediCordz and TurfCordz extend the company’s USA-made equipment into clinical rehabilitation and high-level sports training. The products are used by organizations ranging from the U.S. Olympic Swim Team to professional sports teams and leading hospitals.