Store a whole ounce of herb in the .57L TightVac herb container. This half-vacuum sealed herb container is great for traveling with herb or keeping it fresh at home. Simply press the button, lift the lid, pack the herb, press the button again, and attach the lid. The TightVac will seal your favorite dry herb strains, protecting them from moisture and air. Expect the TightVac to preserve the natural flavors, aromas, and effects of your dry herb for up to a year. The .57L TightVac container comes in three looks--Clear, Solid, and Tint--depending on your lifestyle.