Do more than protect surfaces when you use this coaster set to their full advertising potential! This set of 4 round absorbent coasters is made of stone and feature a cork backing and wooden holder. Customize each coaster with a corporate logo, name or advertising message to create a gift that is ideal for promoting your business. Each coaster measures 4 3/8" in diameter and the holder measures 4 3/16" x 4 5/16" x 9/16". Distribute this useful giveaway during tradeshows, conventions, celebratory events and more. The options are endless with these amazing accessories!