This tea bowl (chawan) has a black glaze. This chawan is in Kutsu-gata (沓形) or clog/shoe shape style. It measures 5 inches wide by 2.65 inches tall with a capacity of up to 12 fluid ounces.
I use traditional Japanese methods in the creation of each chawan to give detail to all of the essential parts such as: the Kuchi Zukuri, which is the mouth opening or lip; the Chadamari, known as the tea well where the last of the tea pools; the Chasen Zuri, the spot where the chasen whisk rubs; the Kodai Waki or the division between the foot and the body at the bottom of the tea bowl's side; the Kodai Uchi inside of the foot, specifically its center; the Kodai or the foot of the bowl; the Koshi or the hip; and the Do, the body of the tea bowl.