Double String Toning Tube High Resistance Tube Exerciser for Workout, Strength Training, Stretching, Physical Therapy with Adjustable Grip for Men and Women. The exercise resistance ropes are made from premium quality natural latex for durability and resistance. They have soft foam D-handles, pre-attached, for continued comfort during repetitive movements. Cushioned foam handles provide comfortable and slip-free grip. They are lightweight, easy to carry and great for home, gym and travel. These Resistance bands are extremely versatile. Great Crossfit Training, Yoga, Pilates, Beachbody, Physical Therapy, Strengthening, Toning Upper and Lower body. You can also isolate and target glutes, legs, hips & knees. Tubes are made up of Latex material while handles are made up of Polypropylene.