Square Bisque Absorbent Coaster, 3 5/8"

Protect your bar or table surface with this square ceramic coaster. Each coaster measures 3 5/8".  These are self absorbent coasters made in China from a low temperature clay that will absorb moisture from glassware. They can be decorated with china paints, but need to be fired with cones 018 or 017. They can’t be fired above 017 or 1400 degrees F.