The SCROLLER II smoothly moves forward ceaselessly and gets right itself up to its original position on its own after tumbling over. This simple and well-designed kit with a few parts to assemble and no need of soldering is not only a lot of fun for all ages but also a perfect educational kit for students from low-grade and up. Put some pictures, beads or paper models inside the dome, and let's make your original SCROLLER II !!