LEGO Mindstorms EV3 is a customizable Lego Technic Robot. This educational STEM set helps you to design, build, program and control your own Lego creations! This is not the basic kit you can find online. This comes with double the parts you will find with any kits available online. I've spent countless hours upgrading and organizing to include all the extra's you need to make an amazing robot. Included is a design book to help you get started, a programming cable, extra motors, sensors, and rechargeable batteries. Asking $450 OBRO. Great Christmas Gift! Reach me by email or text message. Thanks.