I created a series of small boxes for holding stuff inside my toolcase I use as an event technician. This box contains some hearing protection equipment:

Senner MusicPro for personal use

Silicone Ear Plugs for handing out

Generic single use plugs as backup

These boxes fit the inlay of my Peli 1560 that I will share in the next days.

For the hinges use M3x25 mm cylinder head screws with two washers per side, for the lock use M3x20 mm cylinder head screws with two washers in the lid.