The Purple Light Band – 1.5″can be used for various upper body strengthening exercises either by itself or by attaching it to barbells, free weights or machines. It is also used for stretching routines as well as for lower body work for lighter athletes. Good choice as a general use band and specifically for adding resistance to people under 180 pounds during walks, high knees, or sprints. Resistance is 25 – 90 pounds.