Lid interior was held together using aluminium pop rivets - had to remove them by drilling the head off and using a punch to knock the rivets out.

Stamped aluminium plate

Outer neoprene gasket - injection moulded

Inner neoprene gasket - injection moulded

Main body housing - ABS plastic injection moulded

Steel springs

Riveting surface? ABS plastic injection moulded

Latches - ABS plastic injection moulded