Bubee K850B Stainless Steel Vaccum Lunch Jar Wide, natural bowl shape is ideal for enjoying your meals Insulated and leak proof, keeps food hot or cold while on the go Highest quality 18/8 stainless steel; no plastic comes in contact with your food. BPA-free Preheat and fill with hot food to keep your meal warm for 4 to 5 hours Hand wash only. Not for use in the microwave. Do not over tighten the lid