This necklace has three neurotransmitter charms: Norepinephrine (excitement), Dopamine (love), and Serotonin (happiness). All of the pendants are approximately 2 inches long. They are made of glass beads, silver in color. They hang on a silver plated chain. If you need a size other than one listed above in the options, please contact me.
This listing is also available with mini pendants! https://www.etsy.com/listing/209456444/biolojewelry-mini-neurotransmitter?