The VTG Pyrex DOT Mixing 4 Bowl Set includes four round, mixing bowls with a polka dot pattern in white with green, blue, yellow and red dots. Made of milk glass and nested for easy storage, these original vintage Pyrex bowls are ideal for all occasions and were manufactured in the United States from 1969-1973. Perfect for collectors or anyone looking to add a retro touch to their kitchen, these Pyrex bowls are both functional and decorative.