Archival Large Sheet Music Storage Box
13 x 16 x 2-3/4" BLUE-GRAY Archival Barrier Board with acid-free white liner.
Drop-front, deep lid. These 60 point thick boxes are acid-free, lignin-free and have a pH of 8.0-9.0. They have a 3% calcium carbonate buffer and reinforced metal corners for excellent stacking strength. Museum grade archival. Ship assembled.
Material is Acid-free, Lignin-free & Buffered."/>