The First Encircle Structure Dual Mesh Coil E2 Coil is designed with an encircle dual mesh coil structure its core control level to excite more cloud and flavor aroma. P4 Quadruple Mesh Coil is the latest creation from all atomizer sector. It features a parallel structure with 4 lices individual mesh pieces and a closed loop tube structure aiming to improve the contact area between coil and ejuice.