This is a PCB mount, 3 position screw terminal block.
5mm screw terminal block, 2 position, PCB mount
This is a Pre Built robot that utilizes 4 omni omni-wheels to vector it in any direction. By changing the speeds and directions of the motors the robot can drive in any direction without needing to turn.
These large Tiller Traction Lug wheels are 13" in diameter. They come as pair and have steel 5/8" diameter shafts and bearings.