This is a 3AG panel mount barrel fuse holder.
ABS Plastic Multipurpose Enclosures w/ Card Guides 1591 Series
Flame Retardant, General Purpose, Flanged Lid or Bottom
This is a 4WD IG42 single bearing platform that is setup for outdoor navigation/positioning. A full array of sensor options including an IMU, motor encoders, and a Garmin 18x GPS that can provide position feedback with up to 3 meter accuracy.