Versatile: Our Band is 17.7 in(0.45m) long and the maximum stretch length is 4 times - 74.8 in(1.9 m). The band is able to work on both muscle strength and muscle endurance, perfect for use in group training and strength-conditioning classes, pilates and physical therapy and rehabilitation.The figure 8 Closed-loop design is great for two-handed exercises, or for looping around sturdy objects for unilateral exercises, and make exercises like chest flys, leg lifts, and back rows easierSuitable for Anyone: Whether you are a group exercise instructor, a personal trainer, or a beginner, the figure 8 exercise bands are adaptable to different fitness levels, adding variety to your workouts. They are durable, tough, and suitable for strengthen your legs, arms, glutes, shoulder musles, also work especially well for people suffering from leg, knee and back injuries and help in recovery from torn MCL and ACL, knee replacement, patella and meniscus rehabComfortableDurable: The bands are made from a high-quality latex material enough to withstand the toughest workouts. Also, the anti-snap construction allows you to stretch these exercise bands time and time again. The band features foam handles at each end, a center locking system is uniquely designed for extra resistance. The user can get a firm, comfortable grip on the foam handles, prevent the fitness bands from slipping out of your hands, or help protect the band from your shoesUltra-light portable: The lightweight, compact size is much more portable than other exercise equipment, providing 20/40 pounds of re-sistance for beginner and intermediate users, making it convenient for workouts anywhere, anytime! Use these exercise tubes at home, in the gym or wherever you feel comfortable to build, strengthen and tone any muscle