Features: Set of 4 loop resistance bands, each band offers a different resistance level so you can increase your workout intensity gradually. Help to increase strength and mobility and help prevent injury or assist in injury rehabilitation, suitable for both men and women. Measures 10 inches by 2 inches when laid flat (20 inch circumference), stretch further to ensure best user experience. Made from eco-friendly pure natural latex which is snap resistant and can be stretched repeatedly years after years. Flexible loops are lightweight and easily fit into your carry bag or briefcase, great for workout at home, the gym or when traveling. Improve muscle tone in arms, legs, back and buttocks, perfect for physical therapy, yoga, pilates, stretching exercises, fitness without having to go to gym. Specifications: Material: Latex Set: Set A / Set B / Set C / Set D / Set E (optional) Set A: Blue: 500 * 50 * 0.35mm; 5-10lbs Orange: 500*50*0.5mm; 10-15lbs Green: 500*50*0.8mm; 15-25lbs Black: 500*50*1.2mm; 30-40lbs Set B: Red: 500*50*0.35mm; 5-10lbs Pink: 500*50*0.5mm; 10-15lbs Light Purple: 500*50*0.8mm; 15-25lbs Grass Green: 500*50*1.2mm; 30-40lbs Set C: Yellow: 500*50*0.35mm; 5-10lbs Green: 500*50*0.5mm; 10-15lbs Light Purple: 500*50*0.8mm; 15-25lbs Light Blue: 500*50*1.2mm; 30-40lbs Set D: Green: 500 * 50 * 0.35mm; 5-10lbs Pink: 500*50*0.5mm; 10-15lbs Light Purple: 500*50*0.8mm; 15-25lbs Mint: 500*50*1.2mm; 30-40lbs Set E: Grey: 500*50*0.35mm; 5-10lbs Green: 500*50*0.5mm; 10-15lbs Light Purple: 500*50*0.8mm; 15-25lbs Red: 500*50*1.2mm; 30-40lbs Package List: 4 * Resistance Band 1 * User Manual 1 * Storage Bag