This wood photo drink coaster is a 4″x4″ square with rounded corners and is blank on the back side. Wood grain varies on each coaster. The coaster is sealed and is best used for coffee mugs, tumblers, or reusable water bottles. Wood coasters may not hold up well when used under "sweating" glasses (i.e. a glass of iced tea on a hot summer day!). $12 per coaster $40 per set of 4 (discount automatically applied at checkout) *cup not included