Gordian Knot by PD Puzzles.

Great condition. Please let me know if you have any questions, payment will be accepted via Paypal F&F.

More information can be found here: https://www.pdpuzzles.co.uk/new-page-1-1. 

I have copied the description found at the link above: 

The Gordian knot puzzle box was designed by Robert Yarger. This is a resin remake of Roberts's original design. A very enjoyable puzzle to solve, challenging, and tactile with a great original trick to finally solve the box sure to put a smile on any puzzler's face.  Producing this in resin meant a few minor changes needed to happen. It was very important for me to keep it true to the original design and I’m happy that the solve is as it was with the wooden version. However, I did manage to add another dimension to the solution, increasing both the difficulty and the number of steps by around 16 in a way that complements the original design and gives a little surprise to people who have maybe already solved it before.

I will be on vacation between 8/13-8/17. If the auction's end is during this time I will ship when I return