Shotgun Shell 12 Gauge Ceramic Coasters, Set of 4, Bullet Coaster, Coaster, Coasters for Men, Hunting Coaster, Couples Gift, Gift for Man Set of 4 Coasters are crafted from ceramic. Image will be printed on front side only The diameter of each round coaster is 4.25". These sandstone coasters have cork on the bottom to protect your furniture. The graphics are heat pressed into the surface for a durable, brilliant color that won't fade or peel.