Buy a single band for stretching, ankle work and upper body strengthening. Recommended for stretching for stronger athletes who are under 6 ft. tall. The Average Band is 1-3/4" wide and provides up to 75 lbs. of resistance. This band is normally green, but current stock is AQUA. For lower body strengthening on squats or for use with weights (as in powerlifting applications) you would need a pair of bands. Please order a quantity of 2 if you need a matching pair of bands.