Neuron Earrings.  Neurons (nerve cells) are the fundamental transmission cells of the brain and body.  We have approximately 86 billion neurons in the human brain.  This mighty cell is truly what makes our brain work.  The neuron earrings are rhodium plated, hang from stainless steel french hooks and measure about 1 3/4" from the top of the hook to the bottom. A must for any neuroscience fan!