Take a look at the strange shadows! Are these real shadows?
(Does it look like a coaster??)
It's a coaster which looks just like the shadow of the glass.
Not just mug cups, try it with wine glasses and paper cups.
Let's play with these strange shadows.
The coaster comes in four in one booklet. Great for gifts!!

material : polyester & rayon
thickness : 2mm (1pice)
four coasters in one booklet package
made in japan