Sometimes not knowing how things work bug me. Like, a LOT. I do not control the hyperfixation, ok?!
I know Star Wars has bigger fish to fry than explaining how slave collars stay on, but goddammit I’ll figure out a way myself. You can’t tell me that they’re just glued to the skin somehow or the slaves would find a way to yank them off. What’s a little skin if it means you can escape?
But with this, actually succeeding in pulling it out would mean catastrophic damage to the neck, and the points of the anchors are nicely positioned to be able to deliver electrical shocks directly to the spine.
Note that I am but a humble artist with only a passing knowledge of internal anatomy. So the positioning or size of the posts are negotiable depending on how much function they’re impeding.
Naturally, there are ‘temporary’ collars that are not as invasive, but if you’re legally a slave, you probably have this set-up. Which mean that even if you fix the possible burn scars from frequent electrocution, freed slaves always have the pair of rounded anchor post scars and some lingering neck weakness.