Trigger Point MB2 RollerUnlock twice the relief with the MB2 Roller. Designed with two settings to ease tight muscles and stiffness in the neck and back, the MB2 can support proper posture and upper back mobility. The MB2 Roller provides targeted relief to the neck and back to soothe pain, and improve flexibility and mobility. The adjustable length can be locked for use on smaller muscles that attach directly to the spine, or extended to target the larger muscles of the