This is a full box but I don't have a darkroom to know if they are still usable. The product is an antique hammer from the Dry Plate Co in St. Louis, MO, specifically designed for processing 4 x 5 inch negatives in photography. This vintage tool would have been used in a darkroom setting to expose and develop photographic plates in the early days of photography. The hammer's unique design and historical significance make it a valuable find for collectors of vintage photography equipment.