Our coasters are made out of absorbent tile and have a full corked back to protect your furniture. They measure 4" x 4" and are 1/4" thick. They come in sets of 4 coasters of the same design and personalization and include an attractive wood coaster caddy.  They are a great way to add a fun and personalized touch to your home or to give as a gift. These coasters can not be customized.