The set include a 600ml, 1500ml and a 2900ml storage containers with BPA-free hinged locking lids for your general kitchen use. 3 in 1 nesting set for space-saving storage. The containers are made of stainless steel, lightweight yet sturdy, does not retain food odors or stains. The locking lids are made of BPA-free plastic with silicone seal, provide 100% airtight and leak-proof for safe transporting sauces, soups and liquids and keeping food fresh longer. Ideal for storing leftover, prepare salad, fresh ingredient, food on the go, meal prep container, picnics, camping trips as well as for everyday kitchen use. Safe for dishwasher, fridge & freezer and oven (Oven without Lids). Size from large:2900ml( 27cm*20cm*8cm); Medium:1500ml (22cm*16.5cm*7cm); Small:600ml (16.5cm*12cm*5cm).