Thera-Band SkywardActiveHealthCentre Sale! from 500 /per Resistance Very light (Yellow) Light (Red) Medium (Green) Medium to heavy (Blue) Qty. Add to Cart This item is currently on backorder but you can still purchase it now and we'll ship as soon as more become available. Theraband comes in many colors which represent different resistances. They are used for many exercises both upper body and lower body. The length of the theraband you order would be about 5 to 6 feet.