Each ceramic coaster is handmade. There may be slight variations,
imperfections in each one. Each coaster measures 4.25 in x 4.25 in x
0.25 in and weighs 6 ounce when finished. The backs are lined with
cork. They are sealed with lacquer. They are water-resistant. Wipe
clean with damp cloth. Do not soak. They are not dishwasher-safe,
microwave-safe, or oven-safe.