Pyramid Yantra with yantra instrument symbol and the enclosed space of 90 pyramids (81 under 9 pyramids). Also 9 pre-programmed copper discs are pre-programmed for the purpose.
These are all rectangular panels with a gold or silver enhanced symbol at the top, and 9 visible pyramids below. The concentrated enclosed Vastu space of the pyramids attracts the tattva energy of the universe. See Pyron for Vastu for more information.