“Tintoretto” drop spine boxes are made from Duralong Wave archival micro corrugated 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). They have double thickness walls only on one side of the base and the lid. Easy to assemble thanks to the small selfblocking wings.