This downstem fits into a 18.8mm Female and will take an 18.8mm Male Slide
The bottom has been cut with diffusser slits to break up the smoke and air.
These stems work much better than your standard downstem which will give you a very chuggy feel.
The slits however do make these downstems a bit more fragile so be sure to be careful when handling it.
To make sure you have the right size downstem measure only the glass tube from the joint down.
If you are not sure please click here to learn how to measure.
Better to measure twice than to get the wrong size!