<human>: Objective: How to store tools to prevent damage?

Which of the following solutions is more sound in terms of naive physics reasoning?

OPTIONS:
- Place them in a plastic box, with a cotton base and some dividers so the pieces don't damage each other
- Place them in a metal box, with a sandpaper base and no dividers so the pieces are all close together
<bot>: Place them in a plastic box, with a cotton base and some dividers so the pieces don't damage each other