Red – XX-Light – ½” Wide - Primarily used for adding resistance to stretching exercises. Resistance is 5 – 35 pounds.

Purple – X-Light – 1 1/8” Wide - Good choice as a general use band and a specifically for adding resistance to people under 140 pounds during walks, high knees, or sprints. Resistance is 25 - 80 pounds.

Green – Light – 1 ¾” Wide - This band is also a good size for general use and for adding resistance to people from 140 to 200 pounds for body movements. Good choice for pull up training. Resistance is 50 – 120 pounds.

Blue – Medium – 2 ½” Wide - For use getting started on training for bodyweight pull ups and adding resistance for elite athletes and people over 200 pounds. Also a good choice for adding increment weight to power lifts. Resistance 60 – 150 pounds.

Orange – Heavy – 3 ¼” Wide - Primarily used for adding weight to power lifts. Resistance is 70 to 175 pounds.

Black – X-Heavy – 4” Wide - The BIG DOG band for power lifts. Resistance is 80 to 200 pounds.