510 Refillable Cartridge contains 5 pieces of empty cartridges that are ready for you to fill in any flavour or strength of E-liquid.
Refill cartridges time after time, changing every 10-15 top-ups, this is really down to the individual but we feel it to be a good recommendation as the lint gets tired and clogged if over used. Potentially an over used cartridge could damage the atomizers of your electronic cigarette.
510 Refillable Cartridges can be used with any 510 model electronic cigarette.