Arita-yaki (Arita porcelain) Jumping Rabbit Keypo Cup Trio ~ Set of 3. Hollow vessel, Keypo A mysterious vessel like a thermos Keeps warm & cold Microwave safe I took them out of the box and displayed them in the cupboard. They haven't been used. These items have been stored at home for many years, but the products are clean. Please understand and accept this before purchasing.