Discover the Monorail Accessory Track from the Futuron collection - 46 pieces of building excellence.
Travel to the farthest point of your LEGO universe. Add this set (#6921) to expand your #6990 Monorail transport system to over 18 running feet of track and watch the fun grow.
DunksterBricks showcases the contents of the 6347 set from 1991, detailing the variety of tracks and alternate configurations. Other reviewers like DailyWeeklyBuilds simply note the uniqueness of the train system.
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