European Gauge Straight Rail and Curved Rail TK3505D
I’ve recently purchased this kit. The front of the box, box art, describes straight and curved rails. Sprue D, is the only parts included in the kit. In this set, Double Pack, 4-Sprue D are included. They are all straight rails. The assembly instructions on the back of the box describe that you have to bend the curve in the straight rails yourself.
It’s a good thing that I know how to build models or else I’d be totally, bent out of shape over this