Specs: * 22.8mm diameter * 4ml Capacity * Single and dual coil capable * 2mm post holes * 3mm juice feed holes * Top filling through two large fill slots * Juice flow control * Dual adjustable airflow control * 3.5mm under coil airhole (2.5mm with stainless steel insert) * 510 drip tip compatible * 47.85mm tall without drip tip Notch coil included Single Coil Build Cut your wick tails long enough to just tuck into the tops of the wick cups Build tutorial for dual coil build Run wick through bottom coil and cut short on one end. The other end needs to be long enough to tuck into the top of the wick cup. Run the wick for your top coil so that the long wick tail is opposite your bottom coil. It will need to be a little longer to reach your wick cup. We will be moving all your posts to this thread Also, was just informed that half the first run will be black! So initial run will be available in stainless or black! The preorder will be going up at Subtank Supply. I will post a link once it's up.