Spruce up your living room with these NDSU bamboo coaster—a great way to show your Bison pride while watching away games. These make great gifts for fellow fans, students and parents. Purchase them as a set of (6) with a holder or a pack of (3) individual coasters (no holder). They measure 3-5/8" in size and are approximately 1/4" thick—made solely of bamboo—a renewable resource. Available in square or round shape.