These are coasters with the images of the 7 chakras (in the Western world...) For convenience, I have given each of them the corresponding color. Were it not that opinions about the so-called colors are quite different ...
Besides the fact that they are coasters, there is not much to say about it ;-).
Here I printed them out in translucent PET-G. Daylight shines through beautifully when you hang it on the window. The colors do not match my first image. This is because I did not have some colors in PET-G.