This is a rustic looking Cork Oak Wine Bottle Coaster. It has a rough tree bark exterior and polished inside grain. The coaster can be used for a RED wine bottle no larger than 3.1" in diameter. White wine bottles are too large for this coaster. It could also be used for paper clips, candy, or other small items. It has a cork insert in the bottom. It is finished with a clear, food safe finish which also enhances and shows off the interesting character of the wood.