... screw the now filled cartomizer onto the battery. Boge JCA 302D with 2 kinds of Cartomizer , one is pre refilled Dekang ... , Menthol , Tobacco ,French Pipe etc ,another is Empty /Blank JCA 302D cartomizer , customers can fill Dekang inside with their own favorable ... flavors and dosages .Our JCA 302D cartomizers are sold individually with different color . Black , White ...