The Wismec HiFlask Cartridge has a nice portable capacity of 2 ml at its maximum which means that it has enough to last any vaper all day long. This device comes with a JVUA atomizer head and is very convenient to fill up with its filling mechanism. Even though this cartridge is a mere replacement piece it doesn't mean it is any less useful, as these pieces are great for having as backups too. If you are looking for some quality cartridges to have for your Wismec HiFlask, you have come to the right place. Buy with confidence and you won't be let down!