Peek insulators

[nanotm]

with a max power of 30w its clearly not designed for longevity or high power builds, you getting 5 of them for less than a tenner indicating there disposable, on top of which that's more like a stock coil where the press fits been made out of tolerance and they just added an o-ring to it making it easier to rebuild on and thus creating a "new type of coil head"

to be honest its better than the stock units that are annoying to rebuild unless you have a jig (which is why most people just bin them) but I do like the idea of something that's not impossible to disassemble allowing for less landfill