Our Medium Boveda pack measures 2.5" tall x 2.75" wide and contains 8 grams of gel.  Put a Boveda Humidipak in your air tight container and relative humidity will be controlled at 69%. Perfect humidity is essential for keeping smoking material fresh for any length of time. Don't let your smokes dry out and damage! This makes a great gift for all the cigar and medicinal herb fans in your life. You can now ensure yours smoking material longevity in their storage container with the addition of the Boveda 69% Humidity Pack.  Boveda's 2-way humidity control is the only technology that can be pre-formulated to a specific humidity level with an accuracy of +/-2%. Boveda guarantees a constant level of humidity that never fluctuates or cycles. It also eliminates growth of bacteria, mold or mildew. You will never have to use distilled water sponges, tortilla, bread, lettuce for re-hydration of your herbs and cigars. Our Large pack will work in a quart size container.  Please allow three days for our packet to work in your container.  Our product popular uses are maintenance and curing of your medical herbs, flowers, and cigars.