Stone coasters are crafted from a stoneware material that continually 
 absorbs moisture to protect fine furniture. A durable cork backing 
 further protects furniture from scratches. Each set contains four (4) 
 coasters.  
 Details include:
 
 Size: 4" dia.
 
 Set of 4
 Aborbent Stoneware
 Natural Cork Back
 
 Made in USA!