Comes WITHOUT the chain.
This model is rather big (cool as a necklace in steel, silver, gold)! A smaller version, more suitable for earrings or keychains can be found here:
http://shpws.me/qGY0
Caffeine is a bitter, white crystalline xanthine alkaloid that is a psychoactive stimulant. In humans, caffeine acts as a central nervous system (CNS) stimulant, temporarily warding off drowsiness and restoring alertness. Caffeine is the world’s most widely consumed psychoactive substance, but, unlike many other psychoactive substances, is legal and unregulated in nearly all jurisdictions. Beverages containing caffeine, such as coffee, tea, soft drinks, and energy drinks, enjoy great popularity; in North America, 90% of adults consume caffeine daily. (from Wikipedia)
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