Lifelines Flat Bands are easy to use and applicable to an almost endless array of resistance exercises and stretches, these portable elastic bands build muscle stamina and strength, improve balance, expand range of motion and increase coordination. Featuring five (5) progressive color-coded resistance levels to allow you to safely increase resistance and make the gradual adjustments needed for low-impact injury rehabilitation. Versatile and lightweight, these resistance bands can be used in any direction or position to isolate specific muscle groups or for any fitness objectivefrom stretching and injury rehab to strengthening muscles and improving balance.