Vapor Heaven! These Mega Cartomizers have a 510 thread and are made for EGO and KGO style batteries (no cone required). They hold nearly 5ml of e-liquid for all day vaping and are the easiest cartomizer to refill. Simply pop off the rubber mouth piece and drip your liquid into the filler material, as with a standard cart. They're the same diameter as EGO batteries and provide a great finished look when screwed on to your EGO. Each Mega Cart comes with a soft, rubber whistle tip (shown). Dual coil technology utilizing two 3 ohm coils in parallel to produce 1.5ohm output. Price is for one cartomizer and warranty covers DOA only. While being refillable/reusable, these are considered disposable parts, as the price reflects. Available in black only at this time.