5 LEVELS EXERCISE BELTS (10-35lbs): 5 levels of loop exercise straps, graduated from easy to difficulty (slightly tighter, light intensity, very difficult, very tough) High quality exercise belts: 12" x 2" resistant natural and eco-friendly latex, making them comfortable on the skin even after a long time workout, they are very durable! GREAT FOR ANY EXERCISE: Excellent for elastic, arm muscles, leg, ankle, back, and hips, excellent for warm-up, fat burning, advanced workouts, physical therapy, yoga, pilates, crosfit exercises and other daily exercises are assorted round ends: these straps are often used at home or gym, for extra home exercise or injury recovery as a natural therapy, and are perfect for pregnant moms to stay fitted. WORKOUT ANYWHERE, Anytime: light and compact elastic straps, backpack to carry and exercise wherever you are out.