Get early STEM education in motion with this fun set! A great resource for teaching students all about engineering, cause and effect, the principles of gravity and force and motion. Comes with double-sided activity cards that cover all aspects of STEM, including key science concepts, this set is a smart way to introduce and explain "how things go" to students. Plus, the entire set comes in a durable, easy-to-store box. Includes 2 cars, 2 double-sided tracks, 4 weighted blocks, pendulum ball, ladder with 2 removable bars and 10 double-sided activity cards. Plastic. (21 pcs. per set) Storage box, 10-1/4" x 13-3/4" x 3". Simple assembly required.