Beautiful and complex, the Neuron could be called the foundation of all human thought and action. You possess from 86 billion to 100 billion of them (depending who you ask). Now you can have one more. This pendant encases an archival-quality print of a pyramidal neuron (photo by MethoxyRoxy, design CC 2.5 licensed) under a 1 inch glass dome. The reflection of the dome gives it a three-dimensional feel, as if the neuron extends beyond the confines of the pendant. The metal in the pendant is a hand-finished pewter (nickel-free, lead-free). The pendant comes on your choice of a steel chain, sterling silver chain, or adjustable leather cord.