I have no idea, I went to the shop where they had screen protectors for S7 edge, only this shop in the city had these :-\ I payed it €5 , its probably some chinese knockoff, it's just temporary, I'll get a branded screen protector, which I'll have to order from eBay and wait a week or two.
So I'd really not like it to be something that I'd be disapointed with. Currently I'm looking at 5 screen protectors for just £6 including shipping. But I would probably be disapointed with those.
As for the current screen protector, the feel is great, not too much of a plasticky feel, more like a touch on a warm glass. And the transparency is really good, no plastic reflections, you can hardly tell the screen protector that it's on.
They installed it in the shop for me, so the flat screen is 100% bubble free, but the edges cause a nightmare, there's no dust or anything that could cause edges not to stick, it just doesnt stick, like it lacks adhesive or something, I didn't give it time to bond though, maybe there I made a mistake...
So if spiegen or some branded screen protector would make difference, like stick better on edges, I'd buy it!
Oh and I probably would have to buy somekind of screen cleaner? I saw they used it in shop today
Edit: Now the phone is in it's case, with the screen protector on, when I touch the volume buttons, edges lift quite a lot, but are easily put back down, it obviously didn't stick well. Funny that when touching power button, not much lifting happens, maybe none at all, but I can confirm that edges are not completely sticked, especially the left side.