Tree-Free Greetings strives to use the most sustainable materials and processes possible. Printed and assembled in the USA, the Tree-Free Greetings sustainably made cork-backed coasters are vibrantly printed with art laminated to a premium 100 percent post consumer recycled inner fiberboard, and protected with a wipe-clean waterproof top film. This 4-count cork-backed coaster set makes the perfect gift. Brighten someone's day and brighten everyone's future with a sustainable Tree-Free gift today.