Domeless Titanium Male Nail fits 14mm18 mm female downstem 2-ridge Grade 2 HQ Titanium - GR2 Fits 14mm and 18mm Female fitting Apply flame to the bowl while the ridges distribute heat and protect your glass No clogging at all as it has a wide take-in channel It does not need the glass globe  Nail's weight:23g. Size: 6x1.8 cm. Dabber length: 4 7/8" stainless steel. This is Male Nail, so it goes inside the glass joint.