These adjustable weight sets are widely used in rehabilitation by physical therapists. They have been proven effective and are extensively used in hospitals for over 30 years. There is no brand more reliably used than the Original Cuff adjustable weight system. They feature a long closure strap that provides a secure and comfortable fitting, even during the most strenuous workouts. The heavy duty material features double stitching throughout the Cuff. Weights are color coded and marked with individual weights both in pounds and kilograms. They also feature grommets for easy hanging and simple storage.