LocknLock's ingenious patented system uses four distinctive locking hinges and a resilient silicone seal, ensuring an impeccable 100% airtight and watertight seal. This innovative design establishes LocknLock as the epitome of efficient food storage solutions, ideal for preserving freshness in the refrigerator, cupboard or freezer and facilitating secure transport between home and work.The 850ml Rectangular Storage Container is meticulously crafted from durable and safe plastics which are BPA-free, affirming LocknLock's dedication to providing health-conscious and eco-friendly options. The container's versatility is underscored by its suitability for both microwave reheating and dishwasher usage, making it a convenient and reliable choice for modern lifestyles.With a commitment to quality materials, airtight sealing mechanisms, and versatile usage, LocknLock stands as a beacon of excellence in the realm of food storage solutions.Capacity: 850mlExternal Measurements: 13.7cm x 10.4cm x 12cm. The unique LockNLock patented system brings together superb design, high quality manufacturing, innovative silicone seals and four separate locking hinges, resulting in a range that is internationally acclaimed for its performance, practicality and looks. LockNLock products are remarkably durable. The container is clip top, air tight, liquid tight, dishwasher and microwave safe (reheat only not for cooking), freezer safe and BPA Free.