The Original Backnobber reg;II massage tool is constructed of durable, fiberglass reinforced Nylon. The Original Backnobber reg;II is used by hooking one of its curves over a shoulder or under an arm and using its leverage to apply firm, deep pressure to knots in the muscles of the neck, shoulder, upper and lower back and to nearly any other location where muscle soreness may occur. This S shaped massager hooks over the shoulder or under the arm so that it can be effortlessly pressed into any of