The Giant Destroyer Mole & Gopher Killer is a rapid gas killer designed specifically for tunneling and burrowing rodents and animals in their holes, tunnels, and burrows. This effective gas cartridge targets a variety of pests including rats, gophers, groundhogs, skunks, ground squirrels, woodchucks, and moles. Each package contains four tubes per card, and the cartridge can be instantly extinguished with water for added safety. Please note, usage in North Carolina is limited to Norway rats only. This outdoor product features sodium nitrate as its active ingredient, ing a reliable solution for controlling unwanted burrowing animals. Model Number: 00333