These coasters are made out of slate, and are about 4 inches in diameter.
The image on them are rainbows done in watercolour. The design was painted by hand, and then printed onto the coasters.
The back of the coasters have small rubber feet so they don't scratch any surfaces. They need to be cleaned by hand.
This is for a set of four. By default you will get red, blue, purple, and green. If you are looking for something different please message us and we'll see what we can do.