It's not a cartomizer design. It's a 3 piece ecig. You can find wicking content but it is not a stuffed cart. It works by using a polyfill ring concerning the thickness of a small nylon washer. it's possible about 2mm thick. The poly washer rests on a little flange https://brooksryelq.wikiexpression.com/4020909/about_elektronické_cigarety_pro_zacatecniky