The GEMM disposable tanks are designed with multiple built-in mesh coils, eco-friendly PCTG material, easy top-filling sealed with a silicone plug and 360 degree of e-liquid feeding. The coils adopt new diamond mesh structure and patented 90% tea fiber cotton & 10% organic cotton formula which refresh your flavors! What`s more, as a disposable sub-ohm tank, GEMM provides massive puffs and can serve 30 to 40 tanks before the flavors get muted!