From Golden Rabbit, this set of 4 mugs feature: This enamelware is made of carbon steel coated with a porcelain enamel and trimmed in stainless steel. There will be variations in the shading of colors and pattern formations which are the results of the hand-dipped process. Set of 4 child mugs Enamel Steel Stainless steel rim Peter Rabbit™ character from Beatrix Potter books Hand-dipped Oven & Stovetop Safe Dishwasher Safe Measures 2.25"Tall Capacity 4-oz Imported