The model is for a coaster that is sized to be close to a standard coaster size. The raven is raised.
This is a protoype for a gift, so it may not stack right yet, but is designed for the bottom to fit inside of the top.
There is some text included that is specific to the gift, but for anyone interested, "rujho" means brother in the language of the Cheysuli from a fantasy book series by Jennifer Roberson.
outer edge of coaster radius of 97.867 mm (3.853 in)
inner edge of coaster radius of 93.207 mm (3.67 in).
This is for a K1 Max.