Ongrok 2-Way 62% Humidity Packs (Multiple Sizes)

Each of the 62% Humidity Control Packs is designed to last longer, with a shelf life of up to 2 years when stored in a cool dark place in its original sealed bag. There's no need to worry if you forget to completely seal the master bag - the Leak-Proof Construction ensures that no unwanted solution will leak onto your herbs.