What the title says - made up from multicoloured bits and bobs that seemed less likely to ever be built into a model than their better condition brethren and screwed to an offcut of wood. I don't remember where the rollers came from - probably Dave Taylor. It does the job but would be improved by finding more short grub screws for the rollers - at the moment an off center plate gets scratched if it hits a grubscrew at the wrong point.