MELO 5, a new member of MELO series tanks, features the smart top childproof structure as well as a bottom e-liquid lock system for child’s security. This childproof safety design makes refilling the e-liquid and replacing coils easier and more convenient. Otherwise, two different mesh coils are available in this kit, the EC-S 0.6ohm Head and the EC-M 0.15ohm Head, proving you different and intense vaping experience