Kit 4 can make total 39 Robots.
Kit 4 includes additional 31 Robots from Kit 1, Kit 2 & Kit 3.
Robo Kit 4 of Robo Kit Series includes Upgrade Kit 3-4, which allows upgrade from Robo Kit 3. In this course(robo kit 4), students will be introduced to assembly and driving of a more complicated structure by using the interface board, which supports longer power. With extra servomotors and parts, students can also program more complex and exciting motions for the robot. Robo Kit 4 includes more missions in each chapter as well as more complex programming through Rogic.