Hoberman Sphere - Large

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The Hoberman sphere starts as a vibrant, 9” ball of strange, angular hinges. But then, pull it from the sides and suddenly it expands astonishingly into a HUGE 30” sphere! Tap or r oll, and it magically closes again.Throw, bounce, spin, roll or even suspend it from the ceiling as a beautiful piece of art. Use it as a tool for teaching geometry and engineering concepts. Keep it on your desk for inspiration. Includes: an educational booklet about the geometry of the sphere and a 21 fun tricks and activities sheet. Expands from 9" to 30"diameter. Ages: 6 years+ Show more