If you mean this seal from the shop (third pentacle of the sun)
and this one (the forth pentacle of mars)
Then they are 2 of the 44 seals of King Solomon as far I'm aware King Solomon was supposed to have been given the knowledge to create the seals from information given to him by an angel of the lord and they have become a part of kabbalistic magic(Jewish ,mysticism) and where for Solomon to evoke spirits in order to achieve benevolent and just goals.
That's about all I know about the seals though i'm sure there's some people on here who know more indepth information about the seals.
Love and Light