[mothered]

thank you so much for answering me. I'm good at DIY so I think I can do a good job with the label.
I'm just afraid amazon will break the seals to check the inside. I have never used this method. Do you think he can feel comfortable?

You're welcome.

As with every SE, there's always the possibility of returns being checked. But In this case, the first place they'll look for signs of tampering Is the seal Itself, and given you're not touching It, It will not give them reason to open and check Its contents.

more than anything else in case they notice it I can no longer make the return because I would no longer have the packaging.

The box belongs to you, not them, so you have every right to request It back.