Constuct tracks of tunnels, funnels, ramps, and chutes, then set the ball rolling and watch your creation come to life. As kids build through trial and error, they gain an early understanding of the physics and engineering concepts like balance and structural stability. No glue and no connectors teach kids to build with care, honing fine motor skills and dexterity in the process. Includes 200 pine planks, idea book and 2 balls.