Use the TheraBand FlexBar® to improve grip strength in the arm, hand and shoulder. This durable, high-quality treatment for Tennis Elbow or Golfer's Elbow has been research-proven to eliminate pain and provide an effective, non-surgical option to increasing your strength and endurance. It works to improve upper extremities and decrease pain through bending, twisting or oscillating. Select the resistance level right for you: yellow (6lbs. of force), red (10 lbs. of force), green (15 lbs. of force), or blue (25 lbs. of force). The FlexBar's color-coded resistance levels are suitable for improving grip and forearm strength in all ages, ranging from youths to seniors and even elite athletes.