This isn't a cartomizer design. This is a 3 piece ecig. There's wicking content but it is not a stuffed cart. It utilizes a polyfill ring with regards to the thickness of a little nylon washer. it's possible about 2mm thick. The poly washer rests on a small flange on https://dantebjpvc.wikirecognition.com/1221505/koupit_elektronickou_cigaretu_an_overview