I bought a set of these screen protectors for my 2ds xl and they're easily the least pleasant screen protector I've ever had to fit, there's definitely something as too precise a fit and it certainly applies here.
There's 0 room for error especially along the top screen protector that spans the entire distance of the 2ds. Luckily they come in a pair because chances are you wont get the first pair on even close to straight and if you do its going to have bubbles in it no matter how hard you try.
The bottom one goes on just fine but my largest concern is that if you do somehow manage to get a bubble or some debris under it. The margins are so tight that short of using a razor blade I can't see how you'd get the protector off and using a blade would more than likely damage the screen underneath anyway.
out of the set of two i got 0/2 of the top ones on properly due to how tricky it is to line them up while avoiding any bubbles or debris from sticking too it. I did manage to get the bottom screen protector on first go but manage to scratch it with my dull fingernail trying to push a small bubble out.
Definitely wouldn't advise buying these, as you'll just end up with a DS that looks like its got two scratched or bubbled screens anyway.