Whether you're a weekend athlete or simply want to improve the way you look and feel, the Dynaflex lineup represent the fitness breakthrough you've been looking for! So small they go anywhere, yet so powerful, you'll SEE and FEEL tremendous results in just minutes a day! Remarkable dynamic resistance—up to 40 pounds of dynamic resistance depending on the Dynaflex model. Best of all, since the dynamic resistance is controlled by the user, you workout and progress at your own pace! Hundreds of chiropractors and physical therapists across the country have chosen Dynaflex gyros for the gentle rehabilitation of Carpal Tunnel Syndrome, Repetitive Strain Injury (RSI), Arthritis, Tendonitis, Golfers and Tennis Elbow. Its silky smooth, non-impact workout makes it the perfect strengthening, conditioning, relaxation and recovery tool.