Photo Storage Box - for 4 x 5" Photos 4-1/2 x 5-1/2 x 12" Made from 40 pt. Black Barrier Board. Acid-Free, Lignin-free.
These Museum Grade Archival photo boxes are lignin-free, acid-free and have a pH of 8.0-9.0. The boxes have passed the Photo Activity Test for safe, indefinite storage of photos. They come with metal-reinforced corners which provide extra strength for stacking.
Acid-Free, lignin-free, 40 pt. Black Barrier Board."/>