**NEW** These Archival Clamshell Boxes are priced right for storage of smaller quantities of artwork, prints or photos. They are made from sturdy 60 point blue-gray or black barrier board that has a 3% calcium carbonate buffer. Both styles have a white liner inside that has a pH of 8.0-9.0 . Boxes have thumb cut for easy-open. Metal-edged corners give them superior stacking strength. Ship assembled.
Museum Grade Archival - Long-term storage