Description About this product:- This kit comes with all the tools, and parts to build 9 different models, one at a time. After completing these 9 models, the builder can use the connectors, beams, motor and the power screw mechanism to create many more models and projects. The manual provided can help you build any of the models mentioned in the set. Just remember these few points in your build: 1. Follow the steps in the manual and watch out for the notes mentioned. 2. Always remove the parts required in the step aside. After completing the step, noticing if any parts are left is a good way to recheck before moving on.