“Donatello” drop spine boxes are made from Duralong Special archival board, ideal for long term horizontal storage. The drop spine allows to insert and take out the artefacts in a safe way, and provides a protected micro environment within the box from chemical-physical changes (dust, light, environmental pollutants). Extremely strong and rigid with double thickness walls on three sides of the base and one of the lid. Easy to assemble thanks to the small self-blocking wings which can be inserted into the double wall.