This is a sake cup (maru-masu, approximately 0.4 go). It was a gift, but I don't drink sake at home and don't appreciate the quality of the material... I'm selling it because it's been sitting at home. It's made from recycled materials from the Tsuru no Maihashi bridge, using first-class Aomori Prefecture Hiba wood. Originally, the product was 2800 yen (including tax) per piece. Set of 2, not sold separately. Shipping via Rakuraku Mercari.