They need plus keep their tables ring free!

Each set comes tied with baker's twine for a simple eco-friendly packaging option.

Specifications:

• Made of eco-friendly cork
• Four coasters in each set 
• 4 different designs (see photos)
  
• Dimensions - 4" long, 4" wide, 0.25" thick
  
• Microwave safe
• Hand printed with black waterproof ink
• Made in the USA