Head on over to Walmart and grab this Preserve 8-Piece Food Storage Set, Apple Green for only $7.66 (regularly $21.96) opt for free in store pickup, otherwise shipping is free on orders of $35 or more. Preserve food storage containers are made from 100 percent BPA-free, recycled #5 plastic, dishwasher safe and stand up to everyday use. Preserve food storage are a friendly addition to any refrigerator or lunchbox and are stackable for easy storage. The mini, small and large round storage containers have innovative lids which screw on tightly to keep food fresh and won’t pop off in your backpack or bag. Square food storage containers are perfect for sandwich storage and feature a secure snap-on lid.