Each ceramic coaster has a cork bottom to protect surfaces. Design is printed on premium waterproof vinyl with an additional laminated waterproof and UV sun protection clear vinyl. Handmade Features: • Margarita Brain Freeze 3.75 In Ceramic Set of 4 Square Drink Coasters • 3.75 x 3,75 in square • Free Shipping • New Without Tags • Care - Damp or Dry Cloth • All • Southwest Sugar Skull • Made In USA NC • Handmade Condition: New Without Tags