These all come individually packaged with their tubes, making them easy to carry and personalize if needed. They are made from stainless steel and Pyrex glass tanks with the press-on tips; once the ends are pressed on after filling, they cannot be re-opened, making them leakproof. https://officialcannastore.com/product/thc-vape-pen-and-vape-cart-1ml-for-sale-in-germany-with-express-delivery/