2 way humidity control system for cannabis cigars, tobacco, and guitars. These packs are rated 62%. Single packs are $30, or boxes of 6 also available! Discount for a full box! Comparison for single pack on Amazon is over $40. Cash and pickup only please. -- From website: HOW BOVEDA WORKS: Boveda 62% RH preserves botanicals by stabilizing the humidity inside your airtight container. If the jar is too moist, it absorbs that moisture. If it's too dry, it releases moisture into your glass jar to bring your herbs back to life. If you left your herbs out in the sun or in a zip lock bag for too long, Boveda 62 will restore to a bouncy, fluffy state. For best results, add the humidity control pack into your storage container as soon as you place your herbs inside. CHOOSE BOVEDA: Boveda's the only patented 2-Way humidity control solution with 25 years of experience. Using saltwater in our humidity packets, we provide the fastest, most precise humidity control in the market. When you invest in herbs' delicious flavors, aromas, and potencies, you want to make sure you preserve them perfectly. Boveda is scientifically proven to be the fastest humidity control solution. Keywords: Marijuana Weed Humidifier