Hyperboloid Burr - 6/7 Piece Brass Puzzle Design by Oskar Metal The puzzles have been tumble-finished

The puzzles have been tumble-finished to remove sharp edges and come in their natural unfinished form

5 inches tall in it's case

Crafted from the same stock as our Pygmy and Marmoset puzzles it seamlessly complements their design

8lbs or 840g

We reached out to our puzzling mate Allard

Hyperboloid Burr - 6/7 Piece Brass Puzzle Design by Oskar Metal The puzzles have been tumble-finishedThe Hyperboloid Burr is a six piece burr puzzle made from identical hyperboloid pieces. It was designed by Oskar van Deventer with the help of Naoaki Takashima. A wooden version was made as a limited (sold out) edition for Naoaki Takashima by the Kanagawa Toy Company in Odawara. While working on the wooden pieces, the manager of Kanagawa Toy found an unexpected 7 piece solution. A 3D printed version is also available. With Oskar's permission, we have