Board Straightener for Final Girl

Tired of the Killer and Player boards not laying flat. These clips slide on the side across the fold to hold the boards straight. I've noticed some variation in the sizes of the boards and these seem to work well for all of them. On some they're a bit loose, but they still keep the board flat and that's what matters.

You really only need one per board, but one on each side looks more symmetrical if that sort of thing bothers you like it does me.

IMPORTANT: If it feels like it's too tight, don't take a chance on damaging your boards