The Freemax GEMM Disposable Tanks features a non-removable sub-ohm mesh coil, organic tea fiber cotton wicking medium, and comes in many coil options. Featuring a plastic tank construction, the GEMM Disposable tank is top refilled via a silicone stoppered fill port. The wicking medium is composed of 90% tea fiber cotton and 10% organic cotton offering great taste! Pick from a a wide range of single, dual, triple, and quad meshed coil options that is sure to satisfy new and seasoned users.