Inspiring future engineers and scientists, this set gives students a deeper understanding of how machines work. This durable, hands-on set is ideal for STEM education, as it allows students to construct simple machines and explore force, load, motion and distance. With enough pieces to build all 5 machines at the same time, students can build a lever, pulley, inclined plane, wheel and axle, and wedge with this set. Plastic. (63 pcs. per set) 9 1/2" x 14 1/2" x 4 1/4"