This is a great little flavour RTA, and I had a coil set up and running in it within minutes of it coming out of the (precautionary) ultrasonic clean I give all new atomisers. This had no trace of any machine oil or other contaminants though, which is great. Threads are very smooth as well. It can manage pretty complex high surface area coils (I have a stainless steel SSFC in mine) and as long as you thin the wick tails, it can keep up and gives amazing flavour. You do have to pre-twist the coil leads if you want to avoid mangling them and twisting the coil though, as the screws come from the wrong direction for wide builds, although for round wire and simple claptons, that wouldn't matter. All in all, it's a lovely atty, and I may get another.

Li-Ion cells belong in one of 3 places - the device they power, the charger you recharge them in, or in a protective skin or box, of which these silicone ones are a perfect example. Never, ever, loose in a bag or worst of all, your pocket. These are well made and a good price.

I label the batteries with claimed rating, Mooch tested rating, origin and date of purchase, as well as size and polarity markings (and marriage status on those that are part of a set), and being a clear wrap makes this easy to read. Don't use thick paper though, or you'll get them stuck in the mod!

I love the shape of these, they all fit well and feel good in use. They arrived very clean and well packaged in a very nice storage container.

I'm not sure what can be said about a screw, as long as it is the correct size and not made of cheese (these aren't). Good for conversion to hex socket if that is your preference over slotted or phillips head screws, or as spares.