A raised rim design so that the condensation from cold drinks can in there instead of pooling and eventually spilling out onto your furniture. Stackable and easy to clean.Cork coasters are made of cork which is sturdy, looking, thick enough. The perfect material for an absorbent and flexible mat under the bottom of your glassware. effective for iced drinks and freeze water, absorbed water or heat immediately and quickly.Use cork coasters as holder for coffee cups, wine glasses, mugs, drinks, beer bottles & pots. Along with protecting the table top surface and furniture, they also reduce noise from glasses and mugs. Accommodate many different sizes of glasses and cups.This cork Coasters diameter 4 inch, suitable for all glasses, mugs, or cups.Great for an art project. Keep blank cork material for DIY customization to suit your unique style.colour: wood colorMaterial: corkSize: 10.3x1.8cmPackage Contents:16 x Coasters Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.