This set is both fun and educational. Reminiscent of a roller coaster, the 12’ flexible Rubber Ramp can be arranged over a stack of books, cushions, curved around furniture, and more. Use the sandbags to stabilize a loop de loop or to create hills and valleys. We’ve included a pack of wooden balls in three different sizes to spark children’s scientific thinking about motion, force, speed, and systems. Each time kids arrange the Rubber Ramp ball course, they’ll exercise creative problem-solving skills. This kit also includes our Rubber Ramps Investigation Book, created for classrooms, after school programs, and stay-at-home learning centers, too.