Preserve Dry Measuring Cups are made in the USA from 100% BPA free, recycled #5 plastic. These cups are zero-waste because they are made with waste plastic and they are recyclable too. The Preserve Dry Measuring Cups are a four piece set with 1 cup, 1/2 cup, 1/3 cup and 1/4 cup measures. The cups nest and snap together for easy storage. The rounded bottom of the cups allows for easy release of dry ingredients. These are a great addition to your zero-waste kitchen!