A new and innovative way to replace disposable packaging and respect the environment. Reusable - you can reuse these products at will. They are adjustable: they are perfect for sandwiches because of their elasticity. Although they are not completely sealed, they prevent fluid leakage. There is a special space on the sandwich box to write the name or ingredients of the sandwich, or to write your name, which can be easily erased with a damp cloth. Material: Silicone & PP. Weight per gram: 116g. Unit size: 15.5 * 15.5 * 2.5cm. Color: green. Package Included: sandwich box*1. Note: when heating in the microwave oven, remember to remove the PP fixed frame!