TKO Ankle and Wrist Weights Pair Made from soft neoprene material providing complete comfort and flexibility Fully adjustable loop ring and Velcro closure keeps weights in place during use (one size fits most) Easily increase the effectiveness of any workout without lengthening the duration of your activity Added weight increases resistance, boosting the intensity of your workout; Use them during strength, core, cardio and balance exercises Simple and hands free addition to your daily workout without sacrificing mobility or flexibility (2.5 lbs each)