Magnetic underlays contain convoluted foam rubber with bipolar magnets set in a grid pattern at 10cm intervals throughout its length and bredth in an easy clean removable cotton cover.

Magnetic underlays are beneficial for improving overall peripheral circulation, night cramps, muscular stress and tension, particulaly in the neck and shoulders.

It can help to temporarily relieve nerve related pain such as sciatica, promotes respectful sleep and is valuable to sporting injuries.