This is for 2 U.S. G.I. 20 mm Drill rounds. These were practice rounds used by the Navy in the 1940's and 1950's. The bottom of these rounds is marked "Cartridge Drill" 20mm. These cool rounds weigh around 8 ounces. It feels solid. They are brand new, but have some markings on the shaft of the round where they were housed in linkage. That is why I listed them as "used, as new". Again, this is for 2 rounds.