
I wish I knew. They fold open to reveal consoles and room for a little 15mm scaled alien figure. I've seen one resembling a Frankensteins head that folds open showing a laboratory and a dungeon area, and I remember seeing these in Christmas catalogues years ago (as in possibly last century) as there are several types of these. Nowadays I find them on occasion on flea markets aimed at toys or for children, but very rarely.
So sorry mate, can't help you
