-2mm thick walls
outer diameter- 15.5mm to fit 16mm coils and 19.5mm to fit 20mm coils
Rig joint size options:
14mm,18mm male or female
(choose all options above)
If I had it to do over again I would've found another place from which to purchase. The disc inside some aren't level causing the terps to congregate to the lower end. At the joint he seal is terrible. Not happy.
Domeless Straight Electric Quartz Nail-16/20mm coil size