This cartridge requires a special Pax Era Battery. Click here to add one to your order! Critical Jack, a hybrid cross between Critical Plus and Jack Herer, delivers functional cerebral effects with a flavorful blend of lemon, pine, and floral aromas. Its effects are light on the body and stimulating to the mind, allowing one to fixate their attention strongly on whatever task is at hand. Uplifting qualities make Critical Jack a popular daytime remedy for depression, appetite loss, and headaches. Strain Type: Hybrid Genetics: Critical Plus x Jack Herer PAX Labs delivers an incredibly precise and consistent vaping experience. With Pods containing locally sourced strain-specific cannabis oils, a free mobile application, and an award-winning technology brand, PAX products continue to represent the gold standard for product quality The PAX App is available on Chrome and Google play. Customize temperature, control flavor and vapor outputs, explore PAX pods, and see the tests your oils pass. All in the palm of your hand!