10 Pack - SimpleHouseware 3 Compartment Food Grade Meal Prep Storage Container Boxes (36 ounces) KEEP FOOD FRESH: Great Meal Prep Lunch Box to keep your food fresh and meal preps easy. SAFETY: The container and the lid are made by FDA Approved, BPA-Free and Food-Grade Safe PP materials. REUSABLE / STACKABLE / DURABLE : The container is designed to stackable in the freezer or lunch bag, with leaking-proof and air tight lid. Microwave / Freezer / Dishwasher Safe On Top Rack: Withstand temperature from -40F to 320F (Or -40Cto 160 C) USPTO Patent No: US 2018/0086500 A1