Convolution Blockhead | Stewart Coffin 4x4x4 Cube Puzzle creative yoga gift so you can see the

so you can see the finished shape

There are no buttons

5” x 5” to 17” x 23”)

and puzzle enthusiasts

with its inner columns etched into the base

Convolution Blockhead | Stewart Coffin 4x4x4 Cube Puzzle creative yoga gift so you can see theConvolution Blockhead is a handcrafted wooden brain teaser designed by Stewart Coffin. Seven intricately cut pieces assemble into a 4x4x4 cube. The pieces do not just pack together. They interlock in a specific sequence, which adds depth beyond a typical packing puzzle. Handcrafted by Creative Crafthouse with Stewart Coffin's permission. Each puzzle is precision cut for an excellent fit. Dimensions: 2. 75 inches per side when assembled. 7 interlocking