Single pair of Biomagnetism grade extra small neodymium magnets, perfect for balancing pairs on the face.
 
Black leather (-ve face) and red leather (+ve face), with reinforced gluing.
 
Internal magnet measurement: 15mm dia x 5mm
Finished magnet measurement: 70mm x 45mm x 12mm
Holding Force: 4.1kg
Performance: 2600 Gauss