Description
Like the large Hoberman Sphere, this portable version dramatically expands. Pull on the hubs and watch it open from 5-1/2" to 12" —increasing 10 times in volume! Push on any hub, tap it or roll it and it magically closes again.
Plenty of fun, the Hoberman Sphere might get kids thinking about mechanical engineering and some folding/unfolding projects of their own.
Winner of the Parents' Choice Award.
Reviews
There are no reviews yet.