✔Your purchase includes high quality airless pump empty cosmetic jars.✔The airless pump uses an advanced technology to dispense its contents.✔Instead of the traditional style pump & straw which pushes air into the container to force product outward the airless dispenser uses the concept of vacuum & piston.✔When the pump is pressed a piston on the bottom of the container pushes the product upward and out of the top.✔This process avoids contaminating the product with air while minimizing contamination and spoilage.✔You do need to initially fill your bottle to the top with the desired product to create the vacuum.✔The jar comes empty & ready for you to fill and re-fill with your favorite products for travel and for creating your own unique serums and lotion blends. Hand wash to re-use.✔They are perfect for any at home skin care cosmetics essential oils or DIY uses. The opaque white body is not only attractive but also blocks out light.✔Thereby helping to prolong the effectiveness of essential oils, creams or other UV sensitive products.