These glass jars have enhanced barrier protection that preserves and protects your items shelflife. The airtight caps and thick glass walls give the jars an odor-resistant seal. Add your logo to make your brand stand out from the rest. These child-resistant glass jars are fully recyclable and reusable. The custom 4 oz straight sided jars fit 4 oz of liquid and 4.5 grams of your favorite item. All of our custom glass jars come with a child-resistant cap. We can add labels to both the top of the cap and the side of the jars. Comes with one label on the cap or the Jar. A second label can be made and applied for $.30 each.