Custom logo stone drink and beverage coasters made of porous, absorbent sandstone are deeply carved with your company logo or corporate business logo by our master sand carvers to create a set of sandstone coasters that are not only customized coasters, but will protect your tables and furniture from scratches with the cork backing. These logo coasters make a unique and thoughtful promotional giveaway gift to that special client or customer. The absorbent stone coasters will protect your tabletops from glass condensation while looking beautiful. Our round stone coaster is not sealed with any type of coating to assure you get the most of your absorbent coaster. Our sandstone coaster measures 4.25 diameter and .25 thick with a protective cork pad on the bottom. Attach your high resolution logo below.