This Atlas Code 83 Customline Curved Turnout features a nickel silver rail and brown plastic ties that match other Atlas Code 83 trackage. This turnout can be set up as a remote or manual switch with your choice of switch machine (sold separately). The turnout also features die-cast points and an isolated, die-cast metal frog with a power contact. You can use this power contact option to energize the frog and prevent loss of power when a locomotive is passing through. The outside radius of the Code 83 Curved Turnout is 30" and the inside radius is 22".