Known by leading clinics, hospitals, universities and professional sport teams since 1985, NZ Manufacturing provides high quality and versatile resistive exercise tools for swim training, physical therapy, rehabilitation, sports training and general fitness. Since 1985, NZ Manufacturing has continued to improve and expand its extensive line of resistance exercise tools. We are extremely proud that our products are made in the USA from the highest quality materials: The StrechCordz® line of swim training products was designed by a group of competitive swimmers to improve stroke, endurance and strength. StrechCordz Dryland and In-Water training products are known and used by swimmers world-wide, from age groupers, to high school and collegiate swimmers, to master swimmers and International Olympians. StrechCordz are the #1 swim training products worldwide! The MediCordz® products are a result of numerous requests from therapists, chiropractors and patients for rehab and physical therapy products that are designed for maximum function and comfort and that are easy to use in a clinic or home setting at a reasonable cost. MediCordz are offered in a variety of product kits with everything you need to get started. We also present our Safety Bungie and interchangeable rubber tubing with a full line of accessories to custom build the right product to suit everyone. TurfCordz® are another extension of our product offering. High school, collegiate and professional sports teams looked to us to provide high-level athletic resistance products and TurfCordz was the answer. Our patented Safety Super Bungie has resistance strengths up to 200 lbs. of pull! The TurfCordz® Safety Cord Tubing is used for strength and agility exercises and comes with a wide range of accessories which are all heavily padded for comfort and of the highest quality and craftsmanship.