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A3 Storage Boxes

A3 storage boxes are ideal for organising and protecting large documents, craft supplies, art materials, and schoolwork. Designed to fit A3 paper perfectly, these sturdy plastic or cardboard boxes offer spacious, dust-free storage with secure lids or snap closures. Whether used at home, in the office, or a classroom, A3 organiser boxes keep your items neat, accessible, and damage-free—making them essential for artists, students, and professionals alike.
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