"Bring out the Scientist in you and start creating what you want with Strawbees. Experiment with different materials. Combine pieces to create hinges movable joints or whatever you can imagine. The Crazy Scientist kit is massive and enough to build a replica of anything. Start creating your own mad scientist lair full of wierd and wobbly inventions or why not try to build one of the seven wonders of the world! The Crazy Scientist kit is also perfect for education. Download the Free Strawbees iOS or Android App for more fun challenges. Product Details Unlimited fun! Our connectors & straws are reusable. When you finish building you can disassemble your creations Great for home or the school. Use Strawbees to explore STEAM Build some HUGE projects! 1200 Pcs in total (400 x Straws + 800 Connnectors) Instructions manual Includes 21 Projects Made from 100% recyclable PP Free Strawbees App available for download Recommended Age : 8 + Connectors Included 408 x 1-Legged connector 192 x 2-Legged connector 128 x 3-Legged connector 72 x 5-Legged connector"