The Slate Wine Coasters Group Therapy are clever and functional natural slate wine glass coasters etched with four wine bottles and the words Group Therapy. These Group Therapy Slate Coasters let everyone know that a few glasses of wine with some friends is indeed group therapy! The Group Therapy Slate Coasters, part of the Wine is Life Collection, are 4" square and perfect for wine or other beverage glasses. Water rings will not stain the slate coasters. The set of four slate coasters make a great wedding gift, hostess gift or new home present! The ideas are endless!