Simplest Motor
$8.99
Toy Science Magna Buzz
$6.99
Original Hoberman Rainbow Sphere
82324
$39.99
The polymer links in the original Hoberman sphere allow it to increase effortlessly from a 9.5" to a 30" sphere!
Features:
- Instructions for hanging as a cool kinetic energy mobile
- Educational booklet about the sphere
- A 21 Cool Things To Do activity sheet
- A pulley
- Hanging hardware
