Material: Natural TPEResistance value: 30-40LBS 25-30 lbs 15-20 lbs 10-15 lbs 5-10 lbsFunction: comprehensive fitness exerciseModel: fitness resistance bandFeature 1: Training fitness chewing gumFeature 2: Bandas elasticas fitnessFeature 3: Fitness rubber bandsFeature 4: Fitness elastic banddescribe:Exercise can be troublesome. If you don't go to the gym every day before or after get off work, then you'll try to find the motivation to work out vigorously in your home gym.Resistance bands are the best solution because they:Physical therapy for vigorous exercisePerfect workout for arms, ankles and legsSeparated by resistance classes to suit your needsExtremely durable and long lastingLightweight and portable