Serving Trays features: This is 3 sets of multi-function and high-end disposable sushi boxes, which made of quality and reliable materials forpractical to use. Disposable product, you do not have to wash them after use. A very and nice helper in your daily life, very practical. Features Color: Assorted Color Material: aluminum foil Size: About 20.80X15.70X3.00cm/8.17X6.17X1.18inch Note: 1 set includes 1pc lunch box and 1pc transparent cover Note: using temperature range:-50-600 Adoption of heat-resistant and cold resistance aluminum foil material, durable, handy and long-time use Easy to use and carry, with transparent lid design, which can help protect your food from dirt They can be baked, steamed, and grilled on an open flame, so you can eat warm food anytime, anywhere. The built-in insulation layer can help lock the heat of the food, which is very practical They can be used in ovens, microwave ovens, induction cookers, gas stoves, etc., and can withstand high temperatures up to 600C.