Proven effective in hospitals for over 25 years. The weight contours to snugly fit the ankle, wrist, and even thigh. Its long Velcro® closure strap ensures a secure and comfortable fit, even during the most strenuous exercise program. Cuff weights feature heavy-duty materials and double stitching throughout. They are color coded, marked with both pounds and kilograms, and grommeted for hanging on any weight rack.