Board Thread:Questions and Answers/@comment-27900912-20160302062258/@comment-5780397-20160306030709

You're answer would be that they don't have any of those characteristics. Technically, as a Nen beast is made of aura, their body is everywhere the same, so their durability and strength are constant and depend on the user. For the rest, it depends on the shape they are given. They're basically modeling clay, their attributes depend on their shape and consistency. At least, this is how I interpreted what we know.

As for conjured creatures, it still depends on what it is possible to conjure. Kastro's clone could use Nen, but that's because it is the clone of someone who can use Nen. Shoot's hands were manipulated by Shoot, and you can hardly call them "living things". The point is that we don't know how much aura is needed to conjure something. Can Kastro's clone produce aura by itself, or is it just moulding the aura Kastro used to make it? I have no clue.