The Boveda Relative Humidity Packs are the most precise way to control the humidity in your humidor to protect the essential oils and sugars of premium cigars. No more mess of sponges, gels or beads for humidity control. Boveda Relative Humidity Packs offer two-way humidity control.  

Per manufacturer's recommendation: use one 60gram pack for every 25 cigars. .

Dimensions: 5.25" x 3.5"