DIFFERENT COLOR ADJUSTABLE RESISTANCE BANDS: Yellow (10 lbs.), Blue (20 lbs.), Green (30 lbs.), Black (40 lbs.), Red(50 lbs.).All exercise bands are 48" in length, and can be used alone stacked in any combination to a maximum equivalent of 150 lbs. PERSONAL HOME GYM: This resistance band set includes five exercise bands, one door anchor, two cushioned handles ,carrying case and user manual to allow you to perform the widest variety of resistance training exercises possible at home. HIGHEST QUALITY MATERIALS: Resistance band is made of natural latex is kind to the environment. Strong wear resistance and perfect elasticity, steel metal buckle for stronger strength, non-slip handle, comfortable and absorbent.