Sally Hansen Blue Ice.
The instructions say to remove it by filing it off with the supplied nail file, although the strip if fairly thick and after almost a minute of doing this on the first nail, I knew I had to try something else. I ended up using the included orange stick to break off the strip just under my nail and then used the file to tidy up a bit, which worked quite well.
Voila! The finished mani.
I quite like how it looked, but I still felt like I needed to apply a topcoat. Not because it was gritty (it was very smooth, despite the glitter), but I thought the ends would peel off and chip. I didn't and as a result, I had major chipping on my right hand before the end of the first day! I don't have photos because they all came out blurry (my left hand is useless). My left stayed fine, though. I had this on for six days. Taking it off was just as painful as taking off any other glitter nail polish.
All in all, I really like how it looked, but the fiddling around to apply it means I didn't really save any time at all. I imagine this would appeal to time-poor people, but it took much longer than I thought it would. I'm also sceptical of the 10-day wear it promises. But then I had one hand chip badly, while the other one was fine. I'm just glad I chose a design that didn't need to be perfectly straight. Maybe my hands aren't too steady, but these seem like more effort than they're worth to me.