This is simply not a cartomizer product. It's really a 3 piece ecig. There's wicking content but It's not necessarily a stuffed cart. It takes advantage of a polyfill ring concerning the thickness of a small nylon washer. possibly about 2mm thick. The poly washer rests on a little flange https://jaksisprvnvybratelektroni87642.wikijournalist.com/5039059/vyhody_elektronicke_cigarety_options