Simple Machines Set for budding engineers.
Budding engineers discover how machines make work easier. Features 55 sturdy plastic pieces—enough to build all 5 models at once. Activity Guide contains child-friendly directions for assembling and using a lever, wedge, pulley, inclined plane, and wheel and axle. Includes 8 rubber bands and 4 weights to explore effort, force, load, motion and distance. Set of 63 pieces. Ages 9+.

Dimensions:
14.50" L x 9.50" W x 4.30" H
3.65 lbs.