1. Grain fiber material, healthy, environmentally friendly and biodegradable 2. The shell is sealed with silica gel, double-sealed, waterproof and moisture-proof 3. Small size, easy to fit into pockets or bags, large capacity, easy storage of medicines in 7 days 4. 7-layer independent compartment with date reminder, keeping fresh and keeping quality 5. Application: medicines/jewelry/business cards and other small items 6. Size: 130 x 45mm