This is a 2-layer pill box that is 100% damp proof and temperature resistant, designed to protect your vitamins and keep your pills dry. It has a fully sealed gasket and a double lock to keep all your pills in place and prevent them from opening in purses or bags. The pill box also features an easy-to-open ergonomic design, making it ideal for seniors. Additionally, the compartments are translucent, allowing you to monitor which box is empty without opening it. Its portable size of 4.7”x3.3”x1.5” makes it easy to carry in a suitcase, backpack, or handbag.