Single pair of Biomagnetism grade rectangular ferrite magnets, perfect for balancing pairs on the body and limbs.
 
Black leather (-ve face) and red leather (+ve face)
 
Internal magnet measurement: 50mm x 25mm x 10mm
Finished magnet measurement: 75mm x 50mm x 12mm
Holding Force: 3.6kg
Performance: 1,200 gauss