LEGO 7996 Double Crossover Track for RC Trains Set Parts Inventory and Instructions - LEGO Reference Guide
3d printed a Lego train cross track : r/lego
Bastens Crossover Cross Track Rail for Toy Train Compatible with Lego City kit Trixbrix Enlighten Slick Bricks Switch Straight Curved Splitter Flexible | Walmart Canada
LEGO IDEAS - Train Track X-Cross
BASTENS.com - We are lucky enough to have one of the LEGO City Train Track Splitter 7996 which is now retired. That being said I wouldn't recommend spending over $250 to buy