This coaster is made of wood, although the exact material is unknown. It appears to have come with a glass for iced tea. I am selling it as part of decluttering my parents' house. It is about 9cm in size and lightweight. There is some wear and tear, and some areas have wood fuzzing due to aging. It is still usable, but please understand that it has been stored for a long time before purchasing. Please be careful not to injure yourself on the wood fuzzing, as it is made of wood.✩.*˚