From a cozy evening in for two to a big party with all of your friends: Boska Holland® coasters are the ideal way to protect your surfaces against rings and stains. These multifunctional coasters are made from high-quality slate or marble. If you've had enough to drink, you can use them to serve appetizers on too. The coasters come with a 10-year guarantee as standard, so you'll be able to safely enjoy the most delicious drinks and appetizers for years to come.