Tupperware Nesting Measuring Cups. This specific opaque white/frosted style was popular in the 1970s and 80s.  A set of stacking cups with a round body and a flat, tapered handle for easy nesting. A full vintage set usually includes 6 cups: 1 cup, 3/4 cup, 2/3 cup, 1/2 cup, 1/3 cup, and 1/4 cup. Durable, BPA-free plastic that is typically dishwasher-safe.  Overall cups are in great condition. Large 1 cup has a knick not to noticeable when stacked upright. Shown on the last picture. Happy Poshmarking 🎉