1, replaceable and screwable coil unit 2, resistance ranges from 1.5~3.2ohm 3, 2.4ml liquid content 4, 7 colors ... blueResistance: 1.5~1.7ohm,1.8~2.0ohm,2.1~2.3ohm,2.4~2.6ohm,2.7~2.9ohm,3.0~3.2ohm Wicks: 18mm, 30mm , ... container is full of liquid.Colorful tube + drip tip + coil head = T2 cc clearomizer Color options are : pure , smoke, ... High quality replaceable coil T2 clearomizer with 510/ego thread