Strengthen and tone with the Oak and Reed color-coded resistance bands including three varying levels of resistance allowing you to customize the intensity of your workouts. Three levels of resistance: Light Resistance Medium Resistance Heavy Resistance Product Features: Three levels of resistance: light, medium and heavy Bands can be layered to create up to seven levels of varying resistance Ideal for lower and upper body conditioning workouts Great for therapeutic and low-impact recovery exercises Compact, lightweight and ideal for travel