Designed in part from Celtic art forms, and filled with imploded harmonised water.   CIR (Centre for Implosion Research) have had these harmoniser tested by Dr Phil Callahan who found they they produced similar millivolt readings to those measured in sacred sites all over the world.
 
Size:  approx 4cm x 4cm
 
You may find you are drawn to a particular metal which indicates this is possibly the best for your personal harmony.