|group=Trap
|materials=* 4 x [[Plank]]
* 1 x [[Large Axe]]
* 1 x [[Spring]]
* 1 x [[Bow String]]
* Creation success is influenced by the active [[large nails]].
* Failure in creating will damage both the large nails and the plank; failure in continuing will damage the item being added.
* These are very extremely difficult to make and continue, at least 55 carpentry is advised.,** 75 carpentry, 50 ql large nails = 70% creation chance
* The success rate is highly dependent on the [[quality]] of the material.