LEGO 7996 Double Crossover Track for RC Trains Set Parts Inventory and Instructions - LEGO Reference Guide
Incredible self-driving LEGO train system shuffles balls around endlessly [Video] - The Brothers Brick | The Brothers Brick
Third party track – A review of the options | Brick Model Railroader
Double Crossover
Bastens - 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
Ultimate Double Crossover
NEW Lego RC TRAIN 7996 Double Crossover Track Ships World Wide 5702014499041 | eBay