Protect documents, avoid wet and worn out, store them reasonably, save space, and be easy to Transparent and visible, easy to find, refuse to search, see what you need at a glance. Medium Size: Can hold 6-10 documents, birth certificates, certificates, and motor vehicle certificates. Multifunctional storage box, dustproof and moisture-proof. Multifunctional, can also store items, toys, medicines, and all other small items.