It's not a cartomizer model. It is a 3 piece ecig. There exists wicking substance but it is not a stuffed cart. It utilizes a polyfill ring in regards to the thickness of a little nylon washer. probably about 2mm thick. The poly washer rests on a little flange on https://elektronick-cigarety-pro64319.wikiinside.com/1479659/the_electronic_cigarette_diaries