6co Stitch!!

Up for auction is 6co Stitch! Beautifully made by Hideaki Kawashima !!  It’s still in package never solved. 

Winning bidder to pay shipping + total via PayPal. 

Detail below!  Good luck! 

Two cubes are removed from a 2x2x2 cube, each looking as if it were sewn together with three different colored threads.
The puzzle itself is very simple and probably one of the easiest to solve I have made.
I developed it as an application of a certain work, and it became a very challenging work for me.
If I make a puzzle without considering the clearance at all, the part will have gaps between them due to changes in humidity, or conversely, they will be too tight.
It was difficult to create a part with a minimum of gaps while keeping the overall margin of error as small as possible.
This piece is sensitive to changes in humidity, so please keep the humidity around 30-40% and be a little careful when storing it.