Life Tree Essential Oil Warmer

I became interested in this a few years ago and bought it, but I've kept it stored away without ever using it.
The box is not included.
I'm not sure if the items in photos 4, 5, and 6 are still usable, but since they haven't been opened, I'd like to include them. Please let me know in the comments if you don't need them (*'▽'*)
I'm looking forward to purchases from those who understand. _(._.)_

Thank you for looking.