Relieve nagging back pain with the magnetic backstretchermagnetic therapy inserts for effective pain reliefstretches massages the lower backmeasures l76cmxw25cmxh9cmshortcode tabdescriptiondesigned by a chiropractor this scientifically shaped curved frame supports stretches and massages the lower back and spine helping reduce pressure on each vertebrae to gently realign them to a more natural stress free position the rolling balls provide gentle but deep shiatsu style kneading helping