K?NEX T-Rex Fury Motorized Roller Coaster Building Set 473 Pieces Age 9+ Build it! and Ride it! with the K'NEX Thrill Rides T-Rex Fury Roller Coaster with the K'NEX Ride It! app. Experience K'NEX Thrill Rides in a whole new way with this dinosaur themed coaster perfect for boys or girls ages 7 and older. Includes 473 K'NEX parts and pieces including coaster track, roller coaster car, motor and themed graphics to create a coaster over 2ft high. A battery-powered motor moves the coaster to the top of the hill, before it zooms through loops and curves. The coaster requires two AA batteries, which are not included. In a new twist to K'NEX Thrill Rides, children can download the free K'NEX: Ride It! app to take their play to a brand-new level. Once downloaded, children can ride the T-Rex Fury Roller Coaster in 2D or in VR, if a virtual reality viewer is accessible to them. Or, take building into the digital world and create any coaster they can imagine and ride what they just built! Get excited to Build It! and Ride It! Build it! using the 473 K'NEX parts and pieces to build an amazing coaster. Set includes coaster track, coaster car and dinosaur themed graphics. Ride It! once done building, download the FREE K'NEX Ride It! app to experience your coaster like never before. Ride the T-Rex Fury in 2D or virtual reality or digitally build the roller coaster of your dreams! Don't have a VR viewer No worries - experience the whole app in 2D. IF you have your own VR viewer already, use your own viewer to ride in VR. K'NEX T-Rex Fury Motorized Roller Coaster Building Set: Set comes with 473 classic K'NEX pieces to build your very own coaster Set includes a battery-powered motor that gives life to the K'NEX pieces Requires 2 AA batteries, not included Set comes with an easy-to-follow instruction manual STEAMagination - It's the connection of STEAM (science, technology, engineering, arts, math) with a child's curiosity and creativity It powers the fun of each K'NEX set K'NEX Thrill Rides allows each child to build bigger models that move to create an amusement park right in their home Over 2 feet in height Age: 9+ Free App