This puzzle was designed by Laszlo Molnar and made by Brian Menold at Woodwonders.
The pieces are based on a pattern of increasing voxels and contains one piece each with 2, 3, 4, 5, 6, and 7 voxels. Quite challenging to pack them into the box with limited opening.I am happy to combine shipping.
($12 in the UK; $30 in the EU; $40 Rest of world)