Coaster with Metal Holder Set: Includes 6 pcs 4 inch black marble coasters and a 4.5-inch gold metal absorbent coaster holder. Non-slip Bottom: The bottom is made of cork, which won’t scratch your tables and other surfaces and provides a non-slip surface. Keep Tabletop Dry & Clean: Made from absorbent stone, the surface of the coasters absorbs water quickly within 5-10 seconds, will not stick to your table. Convenient for storage: you don't need to bear beverage coasters placed everywhere. While not in use, you can put them directly into the holder, which will make your home tidier. Wide Occasion: Natural black marble pattern design, goes with everthing. Great for home, kitchen, living room, bar, hotel, restaurants. You can use the drink coasters on your dining table, coffee table or even for at the office.