19mm Male Glass Bong Downstem with Funnel Bowl for Smoking Pipes

The downstems are made of high quality pyrex glass. They are very durable. The joint size is suitable for all bongs or glass dab rigs with 18mm female joint. The length down the joint could be made to 115mm(4.5inch), 100mm(4inch), 90mm(3.5inch). It could also be customized. The bowl could fill with wax or dry herbs which ever you like.The wall of the pipe is very thick. It is 2mm. The bowl and downstem are made together. You will not have to buy a downstem and bowl separately. It has the both function. All the items are packed in a bubble bag, which will protect them from broken.