MaterialStainless Steel ColorPink Material Type FreeBpa free About this item Premium Material Made of food-grade stainless steel, this set of food containers are sturdy and durable. They are eco-friendly, BPA free and non-toxin, which can keep your food fresh for a long period. Leakproof The snap-on lids provide an airtight, leakproof seal to preserve freshness and prevent food from leaking and spilling. They are perfect for work, school, picnic, camping, etc. Please DO NOT use these containers in the dishwasher as it will make the lids gradually distort so they wont be leakproof anymore. Space Saver This set includes three different-sized containers which conveniently nest inside each other to save space in your kitchen cabinet when not being used. They are also very easy to clean. Non-Slip Exterior The exterior is made of non-slip material which will not only prevent the slipping, but also provide a perfect way to isolate the heat from the hot food so your hand wont get burned. Perfect for Portion Control Wrap it with ribbons, give it to someone you love so they can enjoy home-made delicacy for a healthier eating style!