MAGNETIC RELIEF FOR YOUR ACHING BACK Aching lower back? Reach for relief with this Magnetic Back Support. Magnetic therapy has been used for centuries to help stimulate circulation and reduce stiffness and pain. This support has 16 strategically placed, sewn-in magnets. Stretchable support provides light compression and fits discreetly under clothing. Non-slip dots on the back help prevent slippage. Hook-and-loop closure for a custom fit. Cotton/poly/latex. Machine wash. 43.75”L. One size fits most men and women up to 52” waist.