These small Rare Earth Magnets are 24k gold plated with a strength of 2,500 gauss. The north and south poles are not marked. The Mini Slim and Mini Max may be used with 30 mm tape plasters (sold separately). The Mini Slim magnets are 0.4" in diameter and 1.6mm (0.06") thick. The Mini Max magnets are 0.4" in diameter with a 2.5mm (0.1") thickness.
The bionorth (-) side is applied to the body for calm and healing and the biosouth is for energizing. Magnetic therapy has been used for thousands of years in the treatment of many common aches and pains.
Always check with your physician prior to using magnetic products of any kind