Hexahog model combines the HEXA cage with a removable puzzle and the HEXXA construction – a three-dimensional folding puzzle. On the Rademic difficulty scale, it reaches a maximum difficulty of 5 out of 5. The entire puzzle is precisely crafted from ground and polished stainless steel, while the inner "Hex" – a kind of metal hedgehog – is made of solid brass. The weight of the set is approximately 390 g. The puzzle is stored in a protective PVC tube. The name Hexahog is a combination of the words hexa (hexagon) and hedgehog. It shares only its shape with the well-known Hedgehog in a Cage – the design principle is completely original. The author of the design and technical solution is Radek Micopulos.

Split the larger HEXXA cage into parts, get into the smaller HEXA cage and remove the hexagon shaped Hex. Insert Hex back into the HEXA cage and fold around it HEXXA cage from the parts.