PRESERVE MEMORIES - Safely store 4x6' photos, envelopes, and CD cases in this hinged lid box, ensuring long-term protection from environmental factors with its archival-quality construction. ACID-FREE PROTECTION - Crafted with acid-free materials, this box prevents deterioration of your valuable photos and documents, maintaining their quality for generations to come. DURABLE CONSTRUCTION - Features a robust metal-edged design, providing enhanced structural integrity and long-lasting durability to safeguard your cherished items from damage. OPTIMAL SIZING - Specifically designed with interior dimensions of 12.25x7.5x5-3/8', this box offers a snug and secure fit for 4x6' envelopes and CD cases, minimizing movement.