Roger Von Oechs X-Ball

Description

The X-Ball and the Y-Ball are sets of 30 magnetic design pieces that can be arranged in a variety of different ways. The inspiration for the X-Ball is the 'skeletal' icosidodecahedron, an orb-like geometric figure long admired for its beauty (it was one of Leonardo da Vinci's favorite shapes. Each makes for a great companion product to the popular Ball of Whacks, and the pieces can be combined. Both come with a 96-page illustrated guidebook that provides exercises for creative brainstorming and problem-solving.