Three=dimensional puzzle sphere - has elements having studs that slide in grooves in inner sphere retaining adjacent elements

摘要

The 3 dimensional puzzle has 32 mobile detachable elements that form a sphere. There are two types of elements; one type has studs and their edges are bevelled towards the interior and the other type does not have studs and their edges are bevelled towards the exterior. The inner sphere has a network of grooves around it and the elements with studs slide in these grooves. The other elements are held between these by their bevelled edges.