This is an enclosure for the Load-Cell sensor kit by Hexabitz. Inc.
hexabitz.com/ (product link)
The lid snaps to the base with no need for any additional fixing material.
The base includes two holes to fix the enclosure to any surface.
the modules can be soldered together using our soldering jig: www.thingiverse.com/thing:3924919
more info about the kit can be found at :
(project page link)