This is simply not a cartomizer product. This is a 3 piece ecig. There is wicking material but It is far from a stuffed cart. It makes use of a polyfill ring with regards to the thickness of a small nylon washer. it's possible about 2mm thick. The poly washer https://andyryflq.wikiparticularization.com/1212043/not_known_facts_about_jak_si_správně_vybrat_elektronickou_cigaretu