The Leg Bands are a set of 5 – 12 inch, latex rubber loop bands, with color coded resistance levels for progressive workouts. These are great for leg strength conditioning and toning. Resistance increases with each band level: Yellow= X-Light, Green= Light, Blue= Medium, Red= Heavy, Black= X-Heavy. Band length is 12″ flat or 24″ in circumference. Each set of bands comes with a draw string carry bag.