Black Leaf T2 Titanium Oil NailThis Black Leaf T2 oil nail is made of high quality titanium grade 2 and suitable as an attachment for bongs with respective standard grindings SG 14 19 female. It is a so called 'domeless' nail which works without a dome. Titanium is the most preferred material when break resistance is concerned. It heats up quickly and keeps the heat for a long time. The pan is heated with a butane burner, until the metal is red hot. Let the nail cool down a little