Which magical item would you choose out of these in middle/highschool?

ONLY WORKS IN SCHOOL

Freeze bell Stopwatch - Any time the school bell rings, time stops for 5 minutes for you. And when it resumes no one notices anything.

Redirectional Ruler - Redirect ANYTHING to someone else by pointing the ruler at them.

Infinity Locker - Locker with infinite space, aka a personal pocket dimension.

Mind controlled Pass - Show to any adult figure outside of class and they will believe you on anything.

Overwrite Pen - Rewrite any number or grade on the paper, and it becomes reality.