Archival box made to fit 4 x5" sheet film negatives stored flat.
Made from 1.7mm Fluted Conservation Board. Passes the Photographic Activity Test (P.A.T).
Internal dimensions (L x W x D): 138 x 115 x 90mm
External dimensions: (L x W x D): 158 x 132 x 92 mm
Lid depth: 90mm
4 x 5" sheet film usually measures 100 x 125mm.