ViVi Nova Mini 2.5ml Tank Clearomizer with new changeable screw-on coil head, which is easily removed and replaced. It has improved head coil with short wick, which produces strong flavor, throat hit and vapor with no leakage. The Vivi Nova Tank Clearomizer is easily disassembled and reassembled making maintenance and cleaning easy. The transparent tank holds up to 2.5ml ejuice for less refilling. Each set comes with 3pc coil heads of different resistance. The ViVi Nova fits most batteries and passthroughs with 510/eGo threading from 3.2v to 6v. ViVi Nova set contains: 1pc 2.5ml Transparent Tank tube 1pc Vivi Nova Tank Base 1pc 1.8ohm Coil Head 1pc 2.4ohm Coil Head 1pc 2.8ohm Coil head 1pc Black Drip Tip Unit: 1 set Threading:510/eGo Style Package: Mini Gift Box How to fill the ViVi Nova: Step 1, Remove drip tip the metal top cap Step 2, Drip ejuice into the tube, use caution not to drip ejucie in airflow hole on coil head! Ejuice level can not be over the top of coil head or ejuice will flow into the airflow hole of the coil head. Step 3, Put metal top cap back Step 4, Reinstall Drip Tip onto the top cap and start vaping! All Drip Tips made for 510/901 on our site can fit the clearomizer well.