Exquisite agate slices: hand-sliced ​​and polished from natural agate, each slice is about 0.2 inches thick. They can become raw materials for agate coasters, wall art, ornaments, DIY projects, brightly decorate your house and amplify energy Practicality: coasters-suitable for cola, wine, tea, boiling water and other beverages; easy to clean-different from cork and cotton coasters, agate coasters are smooth and easy to clean; beautiful-whether it is birthday parties, cocktail parties, these crystal holes Agate will leave a deep impression on your guests. measures approximately between 3 to 4 inches. every piece is diffrent since it's natural. set of 4