Time to go ProThe Inventor kit is our second biggest kit perfect for testing more advanced creations. It features 250 connectors in two random colours, 150 colourful and rigid straws, a nice blue collectors bag and an instructions manual with 21 challanges. Create a bird, a huge mechanical snake, or a replica of the pyramids of Giza. Enough pieces to start inventing really cool stuff or building with your friends. Download the iPad/Android app for more cool inventions."Design toy of the year" - Fast company 2014, "Toys to watch in 2016" - ForbesFor Ages: 5 - 99Warning: toy not suitable for children under 5 years. Small parts might be swallowed or inhaled.