... magnet:800 guass4.bed mattress padProduct features: 1.Magnetic far infrared + negative ions + anti-bateria+cotton+superfine fibre ... during Pregnancy, metal implants, open wounds, and not for children.2.Indications on functionBack Pain, Arthritis, Fibromyalgia, ... Poor Circulation, Body WeaknessIngredients3.Magnetic material and Far IR materialDirectionsUse every night for a Good Night's Sleep . Packing: ...