Sterilite 04112606 6-Pack Ultra Latch Cup Rectangle Food Storage, 2.5-Inch Ultra Latch Food Storage containers are ideal for storing leftovers, snacks, dry foods and more Ultra Latch rectangle shaped containers feature a domed locking lid with airtight, leak-proof seals The containers nest and stack efficiently and feature a lid-to-base color matching system All Sterilite food storage and kitchen items are BPA- and phthalate-free For more than 70 years, Sterilite products have helped make life a little easier