The Fireluke 4 Tank has a 5ml capacity, a 510 base, and an 810 drip tip that can be replaced. It has a top filling system and is ISO 8317 child resistant certified. To fill the tank, simply lift and slide the top cap, which is extremely simple and convenient. Furthermore, the tank makes use of the brand-new FM COILTECH5.0/Double-D Mesh technology, which has an innovative parallel mesh structure with two single mesh coils connected in parallel. It has the potential to improve the flavors and heating speed of the X1-D Mesh Coil by 50%. It improves your instant vaping experience by providing even heating, a stable structure, and the most heating surface area possible.