Add to cart 85390 O-36 Curve Track With White Roadbed $23.50 This is a O scale 3 rail O-36 curve tack that is plastic. This tack comes 4 pieces to a box and it has white road bed and steel rails. The track easily snaps together and can be placed on carpet or board without tacking down. It take 8 pieces to make a full circle. This track was made by Lionel in 2019.