Desktop-proof Document Storage Box A4 Document Organizer Box The Key Certificate Proof File Bag Features: Transparent box - Store things at glance, thickened, safe storage of important documents Clean and orderly of their own life, ordinary small objects, will also bring you different sense of use, life life. - Open top, larger size, easy to, no folding Good storage - Keep internal documents from steam and, slow down wear and tear, and keep your desk clean and tidy Product Description: Parameters: Product name: File storage box Product specifications: small, medium, large Product color: transparent color Product weight: 204g Product size: Medium size (27*19.5*5cm) Includes: 1x file storage box 【Military-Grade Clarity】0.4" reinforced walls with 95% light transmission—instantly verify passport/contract contents without removal (holds 100+ letter-size sheets) 【Humidity-Proof Security】Air-tight silicone gasket blocks moisture—UL-certified polypropylene prevents document yellowing for 7+ years archival storage 【Ergonomic Access】27cm wide-mouth design—retrieve files 2X faster than traditional filing boxes per 2025 Office Efficiency Report 【Multi-Layer Protection】Non-slip base + rounded edges—safe for home offices with kids/pets (204g lightweight yet stackable to 5 units) 【Certified Safe】FDA-compliant & fire-retardant—exceeds ASTM D635 flammability standards for worry-free home/office use