67 Gram Humidity PackLEAK PROOF CONSTRUCTION ONGROK's Humidity Packets are made from an eco friendly plant fiber, so there's no chance of a stem puncturing the packet and leaking unwanted solution onto your herbs. INDIVIDUALLY SEALED TO LAST LONGER Each 62% Humidity Control Pack has a shelf life of up to 2 years, if kept in a cool dark place in its original sealed bag. Don't worry if you if you forget to fully seal the master bag! RISK FREE GUARANTEE At ONGROK, our goal