These Zodiac yantra pendents are made up of ashtdhatu with its ruling planet yantra inside. Yantra are the Powerful Source to Worship the Gods. Mantras are Spoken for happiness of Go in a same ways the Yantra are the residence of Gods. To Keep the Yantra and Worshiping them means to make that God Happy and shows your Respect & willingness for his Presence. This pendant is to be worn according to the sun sign thus it is used to enhance the benefic effect and curtail the malefic effect of a planet.
These pendants are spiritually charged is use to appease the the ruling planet of the particular zodiac sign.