All of our coasters are upcycled from our own surfboard production waste which includes EPS foam dust, stir sticks, tape, mixing cups, nitrile gloves, & excess production resin. Perfect conversation starter for your home, shop, bar, or restaurant. Enjoy your favorite beverage while keeping trash out of a landfill. Contents * Shredded Surfboard Manufacturing Waste (Dried Resin, Stir Sticks, Plastic Gloves, Fiberglass, Etc.) and Resin * Cork Backing * Because of the handmade process, each coaster will have a unique pattern Care/Import * Hand Wash or Wipe Clean * Made in the USA Dimensions 4" L x 4" W x 0.5" H