Description: Feature: It includes a Press-Down Vacuum Lid with an air-sealing ring, ensuring an airtight seal with just a press. Each jar has a capacity of 1200ml/40oz. Function: This storage jar extends the shelf life of stored contents by minimizing air exposure. The vacuum seal created by pressing the lid's button effectively locks out moisture and gases, slowing oxidation and keeping food fresh for longer. This makes it suitable for storing coffee beans, tea leaves, spices, and nuts, ensuring they retain their freshness and flavor. Easy to Use: Our glass storage jar is designed for hassle-free use and maintenance. The wide bottle mouth design allows for easy access, making it effortless to take things out and put items in. Simply close the lid tightly and press the button several times to extract air, creating a vacuum seal. Wide Application: This storage jar is suitable for a wide range of food. It&39;s also great for storing pet food, snacks, oatmeal, sugar, spices, and more. The jar&39;s elegant design and large capacity make it suitable for both home and commercial use. Cautions: Please note that fresh coffee beans may release gas and cause the button to go up. In such cases, simply press the big button again to re-vacuum the jar and ensure proper storage. Additionally, while the jar is designed to withstand instantaneous temperature differences, care should be taken to avoid extreme temperature changes to prevent cracking. Specification: Color: Black; Material: Glass; Size: 100 x 105mm /3.9 x 4.13 inch (Height*Bottom Width); Volume: 500ml/17oz; Package Include: 2 x Vacuum Container Jars