Audio Cassette Storage Box- Archival
Audio Cassette Archival Barrier Board
12 x 9 x 3" (L x W x H)
Acid-free, lignin-free box made from 60pt. blue-gray barrier board with white liner.
pH 8.0-9.0 and buffered with a 3% calcium carbonate buffer. Comes with metal-reinforced corners for stacking strength.