A complete stand alone set or can be used to expand on existing run elements. A button operated catapult and a deflector to guide your marbles right where you want them. Push the button and watch the ball fly up and defy gravity. 

Includes: 

• 26 building blocks 
• 9 run elements 
• 4 special elements 
• 1 marble 
• 1 base-plate 

Suitable for ages 4 . Especially intriguing for master builders ages 8-12 years.