This Bizen sake cup by Koichiro Isezaki is fired in a traditional noborigama (climbing kiln), where intense heat and prolonged firing create its deep, lustrous surface. Unglazed, its rich black tones emerge naturally through the interaction of clay, flame, and kiln atmosphere, expressing the quiet strength and timeless character of Bizen ware. Area: Bizen Artist: Koichiro Isezaki Material: Stoneware Size: φ50 x H65mm This product comes with its original wooden box. As these are handmade products, each piece will look slightly different.