Doob Tube Pre Roll Containers are Waterproof, Airtight and Smell Proof Odor Sealing Containers. It is a consumer storage device designed to keep odors in and make sure everything is safe from water and moisture. These are strong and sturdy tube vial containers. These containers are completely air and water tight and resist normal pressurization. They are ideal for cigarettes, pre rolls and other items. It provides excellent and easy storage for your cigarettes and easy access from pockets and purses and is well protected from outside elements. The child resistant tops helps with safe storage. All Doob Tube Pre Roll Containers are BPA Free and made of a super strong advanced polymer that is reinforced and UV resistant.