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. YOUR OWN PERSONAL HOME GYM£ºUse these resistance bands set to intensify your muscles and build that perfect beach body! They are also the perfect resistance bands for legs and butt, toning your chest, abs, biceps, triceps and more! It is also great for physical therapy exercise that help rehabilitate injuries, improve functional movements of older adults. COMBINABLE FOR ALL FITNESS LEVEL£ºWhether you are a beginner or an expert, these resistance bands are for you. The variety of resistances and multi clip system means you can adjust the intensity of your resistance bands workouts to suit your personal goals.