The self-heating pack is a convenient and quick way to heat up your food without the need for electricity. It comes with self-heating materials that can react with cold water, to provide long-lasting heat to keep your food warm. This convenient and no need ofelectricity design allows you to enjoy hot meals anytime, anywhere. Features - Color: As Shown -Material:Non-woven fabric, self-heating material - Size: 10.00X8.50X1.00cm/3.93X3.34X0.39in -Note: This item is forbidden to eat, and you should keep it away from open flames, and do not pour hot water on it. -Using a self-heating pack is a convenient and quick method to warm up your food without the need for electricity. -This self-heating pack for food is a portable and lightweight solution for travel, camping and outdoor use. -It comes with self-heating materials that can react with cold water, to provide long-lasting heat to keep your food warm. -This set comes with enough quantity of self-heating packs that can meet your different needs, and can be used for a long time. -Say goodbye to cold meals with this self-heating lunch box, as it helps to warm your food no matter where you are.Package list: 20 x Self-heating Packs for Food