This is the back massager with 30 acupressure rollers that relieve tight muscles in the back and neck. The device uses one’s own body weight to press the 28 textured rollers against the back to provide a vigorous massage that relieves fatigued muscles. Spread across seven parallel beams (four roller balls on each), they slide from left to right and roll forward and backward to help loosen muscles and knead the upper back and lumbar after a stress-filled day of work. A pair of larger massage balls at the top of the roller cradle the neck and provide comfortable pressure on and around the muscles. The roller’s lightweight and portable design enable set-up in any room and allow it to be stored easily under a bed or in a closet when not in use. Supports up to 350 lbs. 26 1/2" L x 17 1/4" W x 3 1/2" D. (7 lbs.)