Each piece of Julia Knight is a unique, handmade sculptural work of art. Sand-cast by hand in high-grade, food-safe aluminum, each is hand-painted with special color enamel that is mixed with crushed Mother of Pearl. Due to the handmade process by skilled artisans, small variations may occur in the material, coloring and/or finish of the product adding to its natural beauty. Hand-wash with warm water and a mild soap. Dry thoroughly immediately after washing to avoid water spots. Each piece is freezer to oven safe at 250 degrees. Avoid putting in the oven or freezer for prolonged periods of time.