Mercury ( Buddh ) Planet Yantra in Silver locket to appease the planet Mercury.
The Mercury Yantra helps in eliminating the problems raised by weak Budh in Birth chart. The Yantra engraved on Bhoj Patra is inside the locket to prevent the Bhoj Patra from damage. What is shown on the outer side is a printed version of the Jupiter Yantra. The locket pendant is made of silver and the front has an acrylic sheet.