60 gram Boveda provide hassle-free maintenance of full-size humidors and ziplock bags. Every Boveda RH is accurate to +/- 1% in an air tight environment.
Unlike distilled water and PG solutions with sponges/gel/crystals/beads that will impart unwanted flavours on your cigars, Boveda's reverse-osmosis membrane only releases pure water vapor and Boveda will never damage anything through direct contact.
Dimensions: 5.2" x 3.5"
Shelf Life: 2 years
Lasts 2-4 months in a seasoned humidor
Replace when pack begins to get rigid