This product is a lot of 25 black plastic film containers with threaded lids. Each container measures 3 inches in height and 2.25 inches in width. These containers are designed to hold 35mm film or microscope slides securely in place. The threaded lid ensures that the contents are protected and inaccessible. Made of durable plastic, these containers are ideal for organizing and storing film or microscope slides in a laboratory or photo studio setting. Some are labelled with presidents on the top, most are not labelled. Not sure if these are for film or for a lab. Price is for all 25. We have about another 100 if interested, in bulk. All appear to be used in good condition.