Google's ThogChag definition: 

Thogchags or Thokcha (Wylie: Thog lcags) are worn as amulets by Tibetans, specifically people of the Himalayan regions, for spiritual protection and healing. 

Created in several forms, they often depict tantric deities, sacred animals, auspicious symbols, and mantras. 

Used throughout Asia from antiquity until the early 20th Century, our finely detailed Antique Tibetan ThogChag Talismans are overwhelming with their exceptionally artful beauty and technical skill: so fine, so cool, so small.

And they’re Magic!

Per Wikipedia: “The Tibetan ThogChag is traditionally believed to contain a magical, protective power comparable to Tibetan DZI beads.”

You see, they’re made with meteorites from the sky (heaven) and alloyed with Copper.  

The accompanying GIT assay verifies this antique mini-Masterpiece Tibetan Lord Brahma ThogChag is cast from Copper and meteoritic metals, primarily Zinc with 0.16% Silver.  

ThogChag Definition, per renown Antiquity author John Bellezza in his June 1998 Arts of Asia article: 

>Wearable Sacred Talismans sized from 0.2cm to 10.0cm 

>Produced in Tibet from 1500 BC (primitive sand-casting) to 1900 AD (20th Century lost-wax casting) 

>Made from Copper and meteoric metals  

>Designed to stand alone  

>Endless assortment of designs 

>Each piece is unique  

• Brahma is the Hindu god of creation and part of the Hindu Trimurti along with Shiva the Destroyer and Vishnu the Preserver
• He has 4 faces, to symbolize a wide-ranging four-square capacity, as expressed in the four Vedas (collections of poems and hymns), the four yugas (“ages”), the four varnas (social classes), the four directions and the four stages of life (ashrams).
• His 8 arms hold a large scepter, discus or chakra, a mirror, a copy of the Hindu holy vedas, a conch shell and a water vessel. 
• This Brahma is made in the Tibet style