A Size Archival Boxes
These A size boxes are designed to store A4 and A3 paper sizes and are very hard to find in the marketplace.
A true archival conservation quality product used by archivists for long lasting preservation of documents.
They are both 50mm deep and have strong metal corners which allow them to be stacked. Heavier full ones can even be placed on top of part or empty boxes without crushing.
The matt black exterior and white interior is of conservation quality 1.5mm boxboard and is used for both purity and strength.
The boxes benefit from a 3% calcium carbonate buffer helping to control migrant acidity and airborne pollutants.