Think Outside That's it, just think outside. This Think Outside the Tree features a gently swaying tree and a bird flying free.  This ThinkOutside Tree coaster uses the best materials and are made through a process called dye sublimation to produces "High Definition" beautiful, practical and unbreakable coasters. Coasters are 100% fine weave polyester and base is closed cell natural rubber. Moisture will not soak through these 4 “ by ¼ “ coasters. The image will not crack, peel or fade. If they become soiled or stained hand wash with soapy water or treat with bleach.  Individually Designed & Printed in the U.S.A.