Abstract: A myofascial release device includes a rigid inner core having a first density surrounded by an outer layer having a second density. The second density may be less than the first density to promote myofascial release. The rigid inner core may be a hollow aluminum core and end caps may be placed on either end of the myofascial release device. The overall diameter of the myofascial release device may be between 1.5 and 3 inches, and preferably 2 inches. The inner core may be cooled during manufacturing such that, when the inner core returns to room temperature, the diameter of the inner core is greater than or equal to the inner diameter of the outer layer.