Vintage Pyrex primary colors mixing bowl set includes the large 4-quart yellow bowl (404) and the small 1.5-pint blue bowl (401). These classic mid-century modern nesting bowls are crafted from durable milk glass with a vibrant fired-on exterior finish. Perfect for mixing, serving, or displaying in a retro-themed kitchen, these iconic pieces represent timeless American kitchenware design. Both bowls show signs of use including surface scratches and minor finish wear consistent with age.