Each hand-coiled bowl is made from 100% sustainable organically-grown bamboo, non-toxic water-based adhesive, natural lacquer, food-safe polyurethane. These bowls are coiled by hand, shaped and given a durable food-safe waterproof finish. Each bowl is finished with 5 layers of natural food-safe lacquer. Suitable for both hot and cold foods, they clean easily with warm soapy water or a damp cloth. inner canton: 16.5 x 16.5 x 7 cm Master carton: 51.5 x 51.5 x 38 cm