These single shot shells come pre-loaded in the tube & are intended to be used with purpose built racks, individually secured, or dropped in 2.5" - 3" fireworks mortars.
T-Lock ports located in the base eliminate exposed fuses - greatly reducing the chance of cross fire and allowing for increased precision thru direct ignition of the lifting charge.
Uncle Seth says a handful of these make for a fantastic finale. This is his favorite 60mm tube!