Plarail Thomas, Percy, & James Chirin in Tekoro

Congatulations Muddy, although I have no real idea what is special about these. Can someone enlighten me?

There is nothing extra special about these in particular other than being a very difficult to find Plarail release...They are compatable with blue track and are non-motorized ringing engines that are pulled along by a rare front hook...as a collector they are just a "must have" to "collect them all".