The scientific genius of Leonardo da Vinci is brought to life through this articulated model. The invention that inspired this snap-together replica is taken from the pages of Da Vinci s priceless and awe-inspiring notebooks. This model is made of plastic snaps together and requires no special tools. The manual is very educational and teachs how this invention has evolved into what it is today. Leonardo da Vinci s armored car was the precursor to the modern-day tank. Da Vinci s design was capable of multi-directional movement and was equipped with cannons that were arranged in a 360-degree firing range around its circumference. No batteries required. Also known as DV007