Absorbent Coasters: wood cork coasters feature an absorbent cork on the inside, which provides a highly insulating surface to protect your table from marks or drops of moisture. [NOTE- No coaster can absorb large amounts of water, only condensation from the walls of the cup.]  High quality materials: Acacias have an irregular wood pattern, the heartwood color ranges from light brown to dark red and can be clearly differentiated from the yellowish-white sapwood.Our coasters are made from natural acacia, so the pattern of every coaster is different. So, some coasters may be a little more yellow, some may be a little more white.  Size and Suitability: 10cm x 10cm x 1.5cm. This natural wood coasters are a feature to accent any table with the sumptuous grain on show that makes every single piece unique. Fit with a variety of holder types, including beer mug, coffee mug, wine glasses, water cup eat.  Non-slip Base: Used Silicone anti slip padpad for base to enhance the friction and protect tabletop from scratches.And it can firmly grip the desktop but won’t scratch your tables and other surfaces. Avoid rinsing the wood with large volume water flow.  Coasters for Drinks with Holder: wood coasters Black metal holder included to let you can organize coaster, which makes your coffee table look more neat. A delicate and practical gift for housewarming, holidays, parties, and occasions.