Komax Biokips Food Storage Containers Set Airtight (9) Including 2 Lunch Boxes 100% leak proof. Made of high-quality BPA-free plastic, Food-safe and hygienic 4-sided locking system with silicone seal. Microwave- and dishwasher-safe Passed the strict hygiene and safety tests of U.S. FDA Container holds kitchen staples like flour, sugar, rice, nuts, beans, snack, food, cereal, coffee, or tea