Hi, I'm Robin, and welcome to my wonderful world of WhichKraft! Thank you for visiting my store and checking out my Engraved Ceramic New Orleans Voodoo Coasters. These laser engraved ceramic coasters are a perfect addition to your home decor. It makes for a beautiful birthday, housewarming, holiday, or wedding gift! Each made-to-order coaster is 4.25" by 4.25" white ceramic tile painted black laser egraved. I up-cycled these tiles into a coaster. Cork backing is adhered to each coaster's bottom to protect your furniture. The coasters are waterproofed and sealed; wipe with a damp cloth to clean. Remember that the coasters are NOT dishwasher safe and cannot be submerged in water. The coasters are engraved and sealed the same day you order. Please allow 3-5 working days to ensure quality although I normally send out before that time.