Chai-GAMA チャイガマ Item No.: FCP-250M Coffee Dripper and Double Wall Mug You can brew and drink coffee with this one set. Dripper: 0.22 liters, Maximum capacity 0.26 liters Double Wall Mug: 0.3 liters, Maximum capacity 0.34 liters A mesh filter is included, so paper filters are not required. The mug has a double-wall structure, so it is less likely to cool down. It is used and therefore second-hand, but I think it is relatively clean.