ReaktivDesign reactive glaze modern table culture handle mug. Enjoy delicious hot beverages from the Bonsai handle mug of the Nesuto series by ASA. The so-called reactive glazes give the products a wonderful look with unique color gradients, surfaces, and other features that in no way detract from the product, but rather make each individual piece a unique item. Various effects distinguish each piece individually. Color gradients, speckles, dots, small bubbles, and even irregularities are not reasons for complaint, but are explicitly desired by the manufacturer and contribute to the personal touch of your new dinnerware.