PROTECTION: Protect your table from stains with this unique coaster set. The glass holders protect your wooden furniture from sweating glasses, dripping coffee, soda, tea, prosecco, long drinks and more! UNIQUE DESIGN: The mats are made of natural dark slate stone, similar to granite, with hammered edges. The rubber felt feet under each coaster protect against scratches. They are a unique addition to all tableware sets! PRACTICAL: The slate coasters (10 x 10 x 0.4-0.7 centimeters) can also be personalised using chalk so you never mistake your beer with a mate's. Whether using a plastic cup, glass or paper you will always want to use these stylish coasters. MUTIUSE: Use the stone in a kitchen or bar or even use them as garden tiles for some outdoor decoration. PERFECT GIFT: The cocktail coaster set is a great gift for weddings, a first apartment, birthdays or that friend that loves to host dinner parties! The dark gray is a classic, neutral colour that is sure to please.