National Geographic Glow in the Dark Marble Run Throwing Stars LEGO® building kit with digital

LEGO® building kit with digital instructions – Get ready to build like never before with the LEGO Builder app

the hitch lock inserts through both the receiver tube of the trailer hitch and the shank of the ball mount

18" Handle

and enough parts for two kids (or two teams) to build their vertical marble runs at the same time

Stitched together shorts

National Geographic Glow in the Dark Marble Run Throwing Stars LEGO® building kit with digitalThis marble run construction set allows kids to build an endless array of marble runs. Pieces connect easily, and the set includes 8 glow in the dark marbles in a variety of colors. A full color learning guide provides tips on building a great marble run, as well as insight into the science of motion and gravity. Explore the world of engineering, gravity, and motion. 41 marble run construction pieces and 8 glow in the dark marbles. Together equals the