These go on a pen not a mod. Just like a regular tank till the tank die then it's garbage these I've used I never heard of a k2 Aspire. Sorry what size ohm do you put in your tank?
I have a 1.6 ohm and it's a pen style that you recharge the battery with a usb. It's called the K2 Quick Start Kit. I was just wanting to know if it would fit on my device.
I can see that these are wicks and my pen uses a coil. I can use different tanks but just need an adapter for it which is en route to me. Thank you anyways!