Crown Sporting Goods 4-Feet Medium Tension Exercise Resistance Band - Black An Efficient, Streamlined Workout -- Traditional weights only provide resistance in one direction, but resistance bands deliver a steady stream of progressive resistance throughout each motion, working multiple groups of muscles at a time Gym Quality -- Strong, 100% latex-free rubber with protective rubber sleeves securely connecting foam comfort handles to the band. Easily withstands rigorous daily routines Medium tension and thickness provides up to 12 lbs. of progressive resistance. Double up bands for an impressive 24 lbs. of resistance Low-Impact Lifting -- Originally designed for physical therapy and injury rehabilitation, these medium bands provide a gentler, controlled alternative to traditional weights Ideal addition to home gyms, the office, and great for travel. Exercise, stretch, and promote your own general wellness!