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 male or female connection. To use simply place nail over male or female connection and heat the bowl of the nail. After heating touch your material to the nail and watch as it instantly vaporizes and is directly injected without the need for a dome! The sidecar feature allows you to keep the heat off your rig and away from your face. Not to mention it just looks pretty cool.