EV3TANK is a very compact and simple tank at only 7.375 inches long (16.5 cm), 5.5 inches wide (14 cm), and 5.375 inches high (13.5 cm). This is my very first robot that I've built all by myself, which means I didn't: customize/modify an official LEGO model or fan-built robot, copy a robot, and used no instructions. When I built this, I didn't go all fancy. I worked three long hours building this, so please comment and rate; don't forget to favorite if you like EV3TANK! For detailed info on EV3TANK, please read Addition Information. THIS IS MADE WITH ONLY ONE 31313 EV3 SET.