Due to their size and thickness, they project the strongest magnetic field (up to 12 inches). The magnetic block measures 4" x 6" x 3/4" and has a manufacturers gauss rating of 3,950. They weigh almost 4 pounds.
Magnetic blocks can be placed under pillows, mattresses, seat cushions, and against headboards. I may also be used under a glass of water or pitcher to magnetically treat the water (stir to maximize effect). The North side is labeled so you can orient the negative pole towards the body or you can make either North or South pole water.
** Please note this item cannot be shipped internationally.**