marbleocity ®Triple Play 4-Bar Link< Building Toys

Build A Model Of Four-Bar Linkage! Use The Hand Crank Or Attach A Motor (Sold Separately) To Watch The Marbles Ascend And Then Flip-Flop Down Again! It’S Part Of The First Marbleocity Marble Machine Line To Feature Colorful Plastic Accents! Perfect For Beginners; One Hour Build Time. Triple Play Models Can Connect To One Another For Bigger Fun! Also Works With Marbleocity Motor Kit, Sold Separately. For Ages 9 And Up.Tinkineer’S Marbleocity Introduces Children To Engineering Principles And Physics Concepts With Dynamic Hands-On Stem Model Kits Made Of Precision-Cut Wood In The Usa. Each Kit Includes Easy-To-Follow Assembly Instructions In A Graphic Novel That Features The Tinkineer Characters. The Comic Introduces A Physics Concept Or Engineering Mechanism That Is The Focal Point Of The Model, All In A Fun And Engaging Way! The Result Is An Awesome Kinetic Sculpture And Some New Physics And Engineering Insight!Building Requires Only Household White Glue…No Special Tools! It’S A Unique And Playful Learning Experience For Beginner And Experienced Makers Alike!