YOA Exercise Bands - Pull Up Assist Band, Stretch Resistance Band - Mobility Band - Powerlifting Bands - Extra Durable Pull-Up Assist Bands for Physical Therapy This versatile medium-heavy resistance band is useful for dynamic workouts with our without weights. Our most popular band both for pull up training, and for adding resistances to bench press, squats and Olympic lifts Our resistance bands are made from pure 100% natural latex imported from Malaysia and made using our unique dip method. There are no added plasticisers, coagulants or fillers With resistance band training, every part of the exercise has resistance, resulting in better range of motion strength and more complete stimulation hence promoting muscle growth Build explosive strength by using them in conjunction with barbells, dumbbells, and machines to provide progressive resistance during traditional exercises (squats, bench press, etc)Heavy duty workout bands can also be used for general strength training, assisted pull-ups, assisted dips, power lifting Lifetime Warranty & Money Back Guarantee - Although this is the best quality products extremely durable Product , it maybe never fail or break under normal working conditions. If it does, we will replace it at no cost to you, just drop us a line. Meanwhile, if you don't like this product, please let us know and we'll refund you 100% guaranteed, no questions asked! We are truly dedicated to your satisfaction!