... 2,No odor 3,Guide oil well 4,Smoke easily E cigarette oil guide wick 2.0mm Our wick is made of ... call silica wick, it is specially used in the atomizer of E cigarette, because of its good quality in oil guide, easy smooking, high temperature ... ,High oil absorption2,No odor3,Guide oil well4,Smoke easilyPhoto: E cigarette oil guide wick 2.0mm