. Angel Bowl and Mug Set are Double Walled i.e. Outer Material is Plastic whereas Inner Bowl & Mug are made of Stainless Steel . The Plastic Material is Harmless, BPA Free & Non Toxic . Great Product for Everyday Meals, Tea and Coffee Drinking, Juices, Shakes, Breakfast Bowls, Cornflakes Bowl . Suitable Product for Gift, Return Gift, Birthday Gifts, Gift for Sister / Brother