???PREMIUM MATERIAL? Made of 100% high-grade natural latex, provide more resistance strength to exercise. The connection between the band and the carabiner is reinforced and protected, to prevent the band from breaking. | ???4 ELASTIC GRADES? Red-30 lbs, Blue-40 lbs, Black-50 lbs. You can choose a resistance combination of 50 lbs (20+30) or 90 lbs (40+50). You can use it alone or increase bands to complete different exercises. | ???PACKAGE LIST? 2 bands (20+30 lbs), 2 handles, 1 storage bag. Lifetime warranty service is provided. If there is any quality problem, you can contact the Breebe seller for free replacement without returning the old item. | ???MULTIPLE USES? As the most practical accessory of the family gym, it can be used for strength training, weight loss, slimming, shaping, rehabilitation training, etc. Suitable for full body exercises, such as biceps curl, triceps training, abdominal muscle, chest muscle, leg&hip exercises. | ???PORTABLE STORAGE? Equipped with a waterproof storage bag, it is light and portable. Allows you to exercise anytime, anywhere, whether in the office, gym, home, or traveling.