188.3 mm / 7-13/32" / 24.3°. It comes with an electric mechanism and a lighted double slip switch lantern. It can be retrofitted with 74460 or 74461 digital decoders. It only needs one. You can also use a Marklin 60830 or other K- 83 decoder. In that case, you will run wiring from decoder to the turnout motors. Unused condition with box, cheap at only $77.00 NZD.