Whiskware Stackable Snack Containers (washed but never used): Stackable, interlocking containers for snacking on the go Includes three containers, measuring 1/3 cup, 1 cup, and 1 cup Twist 'n' Lock system connects containers for easy portability Removable handle makes stack easy to carry or clip to a bag BPA and phthalate-free; dishwasher and freezer safe Description is from manufacturer