Easy building fun</br>Contains 109 pieces</br>Interlock pieces and bring imagination to life</br>Includes 10 building ideas with instructions</br>For ages 5 and up</br></br>Product Description</br></br>Easy to follow?? color coded building instructions?? included in every KNex set?? made it easy to bring the models to life. Then came the products that move. From simple mechanical drives to special toy models with integrated motors?? you'll find a KNex product that is suitable for all ages.</br><br/>http://www.amazon.com/gp/product/B001F4PUPK