CMI530 Seratonin- Happiness - Central Nervous System -Chemical Compound Skeletal Formula - White Vinyl Decal for Macbooks and Cars 5.5"X7.5" CMI530 Seratonin- Happiness - Central Nervous System -Chemical Compound Skeletal Formula - White Vinyl Decal for Macbooks and Cars 5.5x7.5" Made in the USA White