Features: Stainless Steel AFC (air flow control) Knurled adjustable ring for air flow (brass) Adjustable quad post design Dual base o-rings Dual negative post Dual positive post Tri-pole with quad-pole functionality (quad terminal) Phillip screws High temperature insulator, ideal for single, dual, quad to octa build setups Copper contact pin 510 threaded connection Includes drip tip Includes Wick/Wire Includes Tool