Loaded with 550 parts?? including bricks?? rods and connectors!</br>Includes a motor to create cool models that move!</br>Instructions and ideas for each of the 30 kid-designed models are included.</br>Requires 2 "" batteries?? not included.</br>For ages 7+.</br></br>Product Description</br></br>Models designed by kids for kids! K'NEX fans and K'NEXpert builders created the models in the new K'NEX Designed by Kids Building Set. Use your imagination and show us you have what it takes to be a K'NEXpert too!</br><br/>http://www.amazon.com/gp/product/B001VAIXIEEr