Solar System Model, constructed three dimensional model is a great way to explain the solar system to students, mounted on a sturdy base. Includes a key, dimensions: 24x 14x 11 inch, Weight: 3 lbs
Air Puck, perfectly balanced and glides on a cushion of air for nearly frictionless motion across any smooth surface. Sturdy bumpers will survive collisions with walls, shoes, or other Air Pucks.