Hunter`s KloakÂ® Earth Scent is specifically formulated to minimize human scent while on the hunt putting game more at ease with the simple smell of the earth you prey walk on. Conceal yourself during the hunt. The synthetic Earth scent cartridge is 2.5 fluid ounces (75ml) and sealed with a screw-on cap that can be reused to cap the cartridge for storage. The cartridge is mess-free, easy to install, and is interchangeable while on the hunt. For easy at-a-glance recognition, the cartridge is clearly labeled with the name of the contents. Each of the Hunter`s KloakÂ® scent cartridges last approximately 4.5 hours and can be used in the Hunter`s KloakÂ® Gen 2 Kloak Mister or the Rut Rouserâ„¢ Dual Mister.