Clamshell Document Boxes Size:A3 Actual size: 413 x 509mm

Actual size: 413 x 509mm + 40mm flap

A3 - 1mm Solid Backing Cards

Size: Half Standard

Sponge will dry to a rock-hard state and become soft again when wet

Clamshell Document Boxes Size:A3 Actual size: 413 x 509mmPlease note: 3. 1mm Fluted Conservation Board is currently available in light grey only while we await a new shipment of the standard blue grey, due July 2026. Same product, same conservation grade quality, only difference is the colour. Clamshell style boxes with a drop down spine and internal dust flaps. Suitable for storing a range of documents, prints, photos and more. Made from 3. 1mm Fluted Conservation Board. Passes the Photographic Activity