John N. Hansen Original Hoberman Sphere Rainbow Expansion Toy

Meet the Hoberman Sphere: a rainbow colored growth toy that invites curious hands to explore

The Hoberman Sphere from John N. Hansen starts as a compact orb and expands into a larger, eye catching shape. Made from rainbow colored plastic links, it expands to a diameter of up to 30 inches and contracts to a tidy 9.5 inches. The result is a kinetic object that captures attention and invites ongoing exploration, making it a memorable addition to play spaces or classrooms.

Designed with flexible play in mind, the sphere includes a pulley system that lets little hands gently contract the structure, then release to watch it unfold again. A sturdy mounting option is provided so you can suspend it as a kinetic mobile or simply enjoy it as a dynamic display piece that encourages touch and movement.

Why this toy stands out for play and discovery

• EXPANDABLE DESIGN: Transforms through 30 distinct sizes, from compact to expansive, offering varied play possibilities.
• VERSATILE PLAY: Toss, spin, bounce, roll, or suspend the sphere for multiple imaginative scenarios.
• EDUCATIONAL CONTENT: An included booklet titled Twenty one Cool Things to Do With a Hoberman Sphere inspires additional ideas and activities.

Practical setup and creative uses

• PULLEY AND HARDWARE: Ready for hanging as a kinetic mobile or for informal challenge play.
• INSTRUCTION AND IDEAS: The activity sheet provides simple, hands on tasks to explore motion, space, and balance.
• AGE GUIDANCE: Suitable for children 4 years and older, with adult guidance as needed to extend safe, imaginative play.

In any room, the Hoberman Sphere brings a sense of whimsy and engineering play. The bright rainbow links are visually appealing, while the folding and unfolding motion offers a tangible way to observe changes in form. It presents possibilities rather than guarantees, inviting curious users to experiment with how a compact structure can become a larger, interactive sculpture.