100% Natural LatexPackage Included: 4 pull up bands, 1 carrying bag and 1 workout guide. Resistance bands are Red 15-35 lbs, Black 40-90 lbs, Purple 25-65 lbs, Green 50-125 lbs. Use these exercise bands to perform rows, pulls, raises, and fly workout sets to exercise your arms, back, hips, legs, chest, and abdominal regionDurable Natural Odorless: Pull up bands are made of 100% high-grade natural latex with double-layered tubing to ensure longer durability, These Resistance bands are Non-toxic, Odorless, Anti-slip, Our Exercise bands improve wear-resistant performance with long-lasting elasticityVersatility: 4 Fitness bands are Perfect for All Fitness Enthusiasts, beginners, Great for men and women. Add to home gym equipment or an efficient hotel room workout while travelling, like assisted pull up, chin-ups, cross-training, powerlifting, yoga, pilates. You can always add more workout bands or fitness bands, based on your goalsBoost Your Strength: We recommend that athletes use resistance bands together. Start your workout with the thin fitness band. Then switch to the thicker fitness band when you tire out. Effectively replace a range of over a dozen sets of dumbbellsPremium Choice: Now enjoy the exercise with exercise loop bands! If you have any questions, don't hesitate to reach out to us, and we'll provide you with a great solution