Features a secure latch, is acid-free and designed to easily stack and work together. Made with a special additive exclusive to ArtBin. The additive forms a protective layer around metal surfaces that prevents tarnishing for five years. Safely store and preserve non-ferrous metals. Translucent polypropylene, shatterproof boxes. Eight fixed compartments plus 20 removable dividers.Formaat 15X14X2 Translucent