A phone pouch. Basically you put your phone inside it and at the top, it locks and you can't use your phone until the end of the school day to unlock it. I'm pretty sure there's a video of it.
Idk!!! Supposedly, the "school office" would do it or have to call your parents for you if a lockdown or any emergency happens. The stupid thing is that if you tear it, it would cost $30! Ik, it's ridiculous but LAUSD made that rule, not me!
That's what I'm doing now. Idk but yesterday some students kept slamming their phones on their desks to try to open it. They're just damaging their phones and the pouch!!