Flexible rails for IKEA LILLABO, BRIO, LIDL train track with male-male or male-female ends

Flexible rails for IKEA LILLABO, BRIO, LIDL train track 

Flexible rails which help to easily build the train track compatible with IKEA LILLABO, BRIO, LIDL 

The difference of this rails is the end - sometimes you need male-male of female-female ends instead of male-female.

One side version - rails is on one side.

The short version of rails is possible to print with Prusa Mini. 

Original model: https://www.printables.com/model/1085857-flexible-train-track-for-wooden-train-short-long 

I recommend at least 3 perimeters (younger kid → more perimeters and infill :-D ) and 10% infill. 

PETG material.