About this 3D model

This is a case for a BigRedBee 2M APRS/GPS transmitter designed to hold 3 CR123 lithium batteries (for a total of 9V and 1200 MaH). I disassembled a radio shack "C" battery holder for the leads and spring. Great for HAB flights. The lid is simple and does not have a clasp. Mine is either banded together or taped together for flights.