Natural Cork Coasters 4 Pcs (Not Included Holder): drinks coasters are made of 100% real cork, BPA-Free, biodegradable eco-friendly materials, features heat-resistant to 392F (200C), stain-resistant, non-slip and reduce noise, protects your furniture. Fit For Almost Drinks: They are big enough for a wine glass and are soft. These cork coasters are 4 inches in diameter and 1/5 inches thick. Perfect for home kitchen living room bar restaurants and office. Easy To Clean And Dry: Reusable cork absorbent coaster is more convenient to clean than ceramic coaster, just rinse it with water and without leaving any water traces.