GREAT RC FUN! Add to your Robenbox set without payingthe list price of more than $100.00!!!! Pick up and deliver ROK Payloads throughout your world with the Monorail's automated side-to-side dumping trailer bed! The RC Monorail can do it all! This first-of-its-kind vehicle glides across a track created from standard Rokenbok beam and block building pieces. Designed to interact with conveyors, chutes, hoppers, and all your other Rokenbok RC vehicles. Requires Rokenbok Start Set and 4 AA batteries. See my other listings for other items…we thoroughly enjoyed this amazing building/RC collection!· Rokenbok is unique, radio controlled, interactive and expandable - the only RC construction toy · Rokenbok Sharpens Cognitive Thinking, Refines Motor Skills, Promotes Social Skills and Cooperative Play and Enhances Creativity · Rokenbok is Winner of over 40 Awards!