Internally threaded Labret stud in 1.2mm (16 gauge) with removable disc end. The disc is available in a choice of 2mm, 2.5mm, 3mm or 4mm and the thread on it is 0.9mm.
It is made out of high quality grade 23 Titanium (6AL-4V ELi) and they are available in 4mm, 5mm, 6mm, 8mm, 9mm, 10mm, 12mm, 14mm or 16mm lengths.
You can choose from Highly Polished (silver coloured) Titanium or Bronze, Brown, Blue, Ice Blue, Yellow, Gold, Rose Gold, Peach, Pink, Purple, 2 Tone, Teal, Rainbow or Green.
These work well for lobe piercings. I ordered 8mm posts, but 6mm would have probably worked just as well since there's some free space when wearing them.
Advantages: Flat backs means that I can't spike myself in the neck when I sleep.
Disadvantages: Flat circles aren't the easiest to hold onto for fitting when you're only able to see them in a mirror! If you aren't used to screwing in the fronts of your earrings, either get a disc larger than 3mm, or get a shape that isn't totally round so you have some more grip.