Please note that wood colors vary! This original design is brought to you by Martin Raynsford and was originally funded through a Kickstarter campaign. There are several fiendishly complicated tray puzzles based upon space filling fractal curves. The Gosper Curve was named after Bill Gosper and also known as the snowflake. The triangular pattern is reminiscent of a complex snowflake. Made from a high quality birch laser plywood sheet, the natural look of the wood will show natural colour variations. The material is sanded and oiled to create a superior finish. Some of the puzzles have been dyed with wood dye. The name of the puzzle is displayed on the front, while the designer is displayed on the back.