PREMIUM NATURAL LATEX: Our figure 8 tubes resistance bands are made of 100% natural latex and come in 3 resistance levels, from light (8-10LB) to medium (13-15LB) to heavy (17-20LB). This makes them perfect whether you are just a beginner or a seasoned workout pro. Soft foam handles provide a comfortable grip. | VERSATILITY: Our closed-loop figure 8 design are a perfect tool set for stretching, muscles toning, yoga, Pilates, weight lifting, home gym, and physical therapy. They are durable, tough, and great for strengthen your legs, arms, glutes, shoulder, and hips with no fear of tearing or snapping. | PHYSICAL THERAPY: Our heavy duty tubes 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 rehab. They are also perfect for use by women during pregnancy and after birth to keep their bodies in shape. | ANYWHERE ANYTIME: Our tubes come with a premium water-resistant carrying bag that can be easily transported to use wherever you like. Get a great resistance bands workout at home, in the gym or your office. | LIFETIME WARRANTY: We will replace the tubes if they break at any time. Period. We are confident in the quality and durability of our figure 8 design tubes.