These flavors are different from our normal pre-filled cartomizers even though the flavors may have the same name.

Joye 510 & eGo Cartomizer  .... Copper Threads and Hard Plastic Mouthpiece

These Cartomizers are sold in 5 packs and come Pre-Filled so you can simply screw them onto your battery and vape away.

Based on Joye Technology this cartomizer combines the Joye 510 atomizer and cartridge into one unit. You can refill the cartomizer numerous times before having to discard it. Since they are cheaper than standard atomizers, it makes it easy to fill up several with different flavors, and just unscrew and pop a new one on to enjoy a new flavor without having to rinse or wash out atomizers to try a new flavor of smoke juice. 

These are standard resistance cartomizers.