Child Resistant conical Joint Tubes from Line Packaging Supplies. Buy Child Resistant Pre Roll Tubes and Child Resistant conical Joint Tubes. Joint tubes or blunt tubes or doob tubes are small containers that restrict the flow of odors from the tube while protecting a pre-rolled joint from bending or being damaged. With pre-rolls in such high-demand, we make it easy to order pre-roll tubes and blunt tubes at wholesale pricing. Several of our blunt tube models are also child-resistant for extra safety. ASTM approved the product. Stylishly store all your pre-rolled cigarettes with these high-end Glass Pre-Roll Tubes. This doob tube can easily accommodate pre-rolled cigarettes or pre-rolled joints of varying sizes. Conveniently store your cannabis products into these pre-roll tubes, knowing they will lock in the freshness of your product with their compatible child-resistant caps. They’re perfect for dispensaries looking to showcase their product or for those looking to present their finely rolled herbal cigarettes. What are you waiting for? Start your order with Line Packaging Supplies today.