doesn't seal good around vapcapM 2019. Getting leakage unless you move it just right
the fat mouthpiece is great to use with bongs and makes the VapCap easier to grip. Definitely worth the extra couple of dollars
Great add on it works with a few of my cartridges as well as my VapCap . Also comfortable if you dont use a waterpiece.
Also work on a lot of wax cartridges so I've been hitting my pen through a bong and I've been getting fried haha