High quality: The materials used for the booty bands will not cause irritation or reaction to the skin. The resistance bands do not slip and do not roll up like many latex sports bands sold on the market. They retain shape and elasticity over time. Resistance bands are used for Fitness, Yoga, Cardio, Physiotherapy, and Strength Training. With these 4 resistance bands with different resistance levels, you can train endless different muscle groups: legs, buttocks, biceps, triceps, pectorals, back muscles, abdominal muscles, and so on. You will receive three bands with the same size (108CM). The resistance of each band is different from light to heavy. It is ideal for easily changing resistance levels between workouts. The straps are sold in a handy mesh carrying case. Light: 5-7kg resistance, Medium weight: 7-12kg resistance, Heavy: 12-17kg resistance. Train at home, outdoors, in the gym, or take the resistance bands with you on holiday. The resistance bands are light, and you can easily take them anywhere in the included travel bag. The MKAS fitness bands are suitable for beginners and professionals alike.