For storing 3x1inch slides in vertical position. Made of steel duly painted. Each tray made of steel moves in a slot and is completely removable for easy lifting. Well Designed for its performance, durability and appearance. Powder coated paint outer finish with smooth working doors fitted with handle, lock and key. Properly fitted with uniformly slotted aluminum carriers in rows, each holding 50 slides. each tray holds 100/200 slides in horizontal position.