This is a replacement atomizer head for Kanger products. It has an enclosed wick and comes in a selection of different ohms sizes. It is really important to make sure that you get the right size though. You need to check the resistance and make sure that the battery you have will be able to handle it. If you are not sure then it is important to check as you need to make sure that you get the correct size. It is also important to make sure that they will work with your particular model so check before you buy, as it is only compatible with specific Kanger models. The changing of the coil is really simple you just have to unscrew the old one and screw in the new one, so this should be easy for you to be able to do. It is designed to be simple so that you do not get delayed in making the swap.
5 Coils in Box Packaging with Authenticity Sticker