Usage Scenario

Step1: The box is a sliding lid design, which is locked when dry.

Step2：When it is taken outdoors in rainy weather, the rain falls into the hollow hemisphere.

Step3：The hydraulic force plus the magnetic force below attracts the hemisphere to a position where it will not jam the lid. Box opened

Step4：To restore the box, you first need to absorb the water with one end of a cotton swab, push the lid back to its original position, and then suck the hemisphere back to its original position.