Check the listing for details. 6Pcs 3.9" Round Diatomaceous Coasters for Plants Drink, Blue. Color: Blue, Condition: New, Made in CN. Listed at 22.66 USD. Diatomaceous coasters are a practical little item for life. It can protect furniture from damage and enhance the happiness and quality of home life.Specification:Material: DiatomaceousCoasters Color: BlueCoasters Shape: RoundCoasters Diameter: 100mm / 3.9 inchCoasters High: 9mm / 0.35 inchPacking List: 6 x Diatomaceous CoastersAdvantage:These diatomaceous coasters are made of diatom mud and plant fiber, which are sturdy and durable. There are small holes on the diatomaceous, which makes it more absorbent. It is moisture-proof, keeping your desktop dry.Diatom diatomaceous coasters have a good insulation effect, which can effectively protect furniture from damage and solve the problems of water and scald marks on the desktop.It is easy to clean, just put it in water and brush it with a brush, then dry it, and it can be recycled.