This is a 3AG panel mount barrel fuse holder.
In-line 3AG Barrel Fuse Holder with 18AWG wire leads
This is powerful wheelchair motor. They make great heavy-duty robot motors. 250W 120RPM motors with 17mm keyed shaft output. They are sold individually and have an electric brake mounted on the back.
RPLIDAR A1 LIDAR - 360-degree two-dimensional 12 meter laser range scanner (LIDAR).