This set of three nesting mixing bowls by Pyrex is a must-have for any kitchen. The bowls are made of durable and long-lasting pressed glass material that is both microwave and oven-safe. The glossy finish and round shape of the bowls make them perfect for all occasions and the stone pattern adds a touch of elegance to your decorative cookware. The set includes a 7", 8.5", and 10" bowl and is ideal for mixing and measuring ingredients. The bowls are impressively crafted with precision and care, making them a valuable addition to your kitchen. The backstamp is clearly marked and the production technique involves heating raw materials. This Pyrex bowl set is an original and licensed reproduction from the United States, perfect for vintage collectors and enthusiasts.