Come and see our amazing products. There are 5 different resistance levels of professional resistance loop bands: yellow 8-15lbs, red 15-35lbs, black 25-65lbs, purple 35-85lbs, green 50-125lbs.So it is suitable for the public such as beginners, fitness fanatic.It is perfect for for body stretching, powerlifting, resistance training, yoga, and physical therapy to help strengthen torn ligaments or muscles. Pls confirm with us about the packing info, stock color and exact production time before placing your order