5-Level Exercise Bands (10-35 lbs): 5 levels of loop bands, from easy to difficult (slightly hard, light, moderate, hard, very hard)HIGH QUALITY EXERCISE BANDS: YoJoy 12" x 2" training resistance bands are made of high quality and eco-friendly natural latex, which makes it comfortable on the skin even after long time exercise, and is very durable!GREAT FOR ANY WORKOUT: Excellent for flexibility, arm muscles, legs, ankles, back, and hips, excellent for warm-ups, fat burning, advanced exercises, physical therapy, yoga, Pilates, CrossFit, and other daily exercisesVarious Circular Ends: These bands are often used at home or the club, for additional home exercise or to aid in injury recovery as physical therapy, ideal for pregnant mothers to keep fit.Exercise anywhere, anytime: light and compact elastic bands