This pendant is a particularly artistic design of the OM symbol in a round, beautifully decorated silver ornament with a diameter of 24mm. The pendant is made entirely of 925 sterling silver, the pendant loop has a subtle graphic pattern engraved. Indian ethnic jewelry for both women and men, handcrafted in 925 sterling silver.
OM - a mystical symbol for divine energy, transcendence or absolute existence.
Further details can be found on OM Wikipedia
Much more information (only in German language) about the OM Symbol can be found on bhagavad.de