Toss your glass dome and nail and switch to titanium! This 14mm/18mm nail is made of Grade 2 Titanium and fits any 14mm or 18mm female connection. To use simply place nail over female connection and heat the bowl of the nail. After heating touch your materials to the nail and watch as it instantly vaporizers and is directly injected without the need for a dome! This nail features an added titanium plate that unscrews from the top which allows you to easily control airflow and also allows you to reclaim materials that collect underneath the plate.