I do believe this is a copy - which I have. It is plastic on outer but metal inside.
It should be noted that on my copy version, the internal notch that aligns to the gear level does NOT have the angle needed for our cars meaning that if you set it up, it will be turned at an offset angle.
I tore mine apart and remoulding the notch to suit.
Besides that, it's a good rep and I've used it for a while now.