Band Resistance Breakdown:
Extra Light, Orange: 1/4" W, provides 2-6 lbs. of resistance.
Light, Red: 1/2" W, provides 5-25 lbs. of resistance.
Medium, Black: 1" W, provides 10-35 lbs. of resistance.
Heavy, Purple: 1 1/8" W, provides 30-50 lbs. of resistance.
Extra Heavy, Green: 1 3/4" W, provides 65-85 lbs. of resistance.
Ultra Heavy, Blue: 2 1/2" W, provides 80-100 lbs. of resistance.
Super Heavy, Black: 4" W, provides up to 200 lbs. of resistance.