Product Packaging: Contains 6 coasters made of round rock material with metal storage stand. Design and Materials: Each coaster is made of rock material and has a non-slip base. The black design complements any interior and protects the tabletop from water stains and scratches. MULTI-FUNCTIONAL USE: This set of 6 rock coasters is suitable for hot and cold beverages, mugs, glasses, alcoholic beverages, oil bottles, vases, flower pots and more. Colour:Black Material:rock Size:About 10cm Package Contents: 6 * stone coaster 1 * storage holder 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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.