The Serenity 2000 Magnet Therapy Pad is the most effective, versatile product of its kind, Measures 15"" X 19"", contains 32, sewn in, 1100 gauss magnets, Use under pillow for deep sleep, better circulation in the head area, Use as a pad on any area of the body for pain and stiffness, Use as a seat or back cushion to prevent stiffness and increase circulation, SKU: SEREN086