Suitable for all kinds: perfect for , high ball, low ball, whiskey glasses, coffee cups, tumblers, flasks, jars and fountain drinks. Table Protection: Prevents condensation from leaving any stains or water marks on countertops, bar counters or table tops. Non- design: The soft foam pad at the bottom protects your furniture surface from slipping and scratching. -friendly: Unlike paper or cardboard coasters, these coasters are reusable; Dry with a damp cloth and towel as needed for best results. Colour:black Material: flagstone Size: 10 x 10cm Package Contents: 13 x Drink Coasters Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.