I threw this piece on a potter's wheel and burnished it with a soft cloth to a smooth satin sheen. It has no glaze. It was then fired in an electric kiln. At the end of the firing I pulled it out and dropped individual strands of horsehair which burned off leaving the brown/black squiggly lines. Measures approx. 8"x4" and has my initials on the bottom. Not suitable for food or liquids.