This limited edition coasters are truly one-of-a-kind pieces. They're made of hand-dyed wool, and each has a unique design of birch trees. The subtlety of the color transition and pre-felted texture create a unique effect that can be hard to achieve with industrial dyeing. Each coaster has uneven edges and measures approximately 4"x4". Can be used as ornaments or wall decorations. Only one set is available now.