This pair of vertebra strips each have 6 ferrite magnets. Theycan be used along each side of the vertebra for pain, inflammation, for detoxification, or to be used on other areas of the body for weightloss.  Very versatile.  Ideally used with a set of two strips. Covered in leather/swede. The entire strip measures 21 inches long by 2.5 inches wide. Each magnet is 4000 gauss.  Buy in a pair for $56.