This Back Stretcher Massage Board is a great way to improve your posture and relieve back pain. The board is made of durable plastic and features multiple acupressure points that help to stimulate blood circulation and relax muscles. The board can be used at home or in the office. It's easy to use and assemble. Simply place the board on the floor and lie on it with your back. Then, use your hands to adjust the height of the board until you find a comfortable position. It can also be used to stretch your hamstrings and improve your flexibility. It's a great way to take care of your back and improve your overall health.