[Brian Diez]

They are from the manufacturer and wrapped in leaver with pvc reinforcement.

I'm ordering from the same manufacturer as Rogue.

As far as injuries resulting from landing on the box, I apologize, but I don't understand your logic.

You're not landing with force on top of the box. Injuries occur as a result of landing as you jump down or from missing and splitting your shin open.

I don't see how softly landing on top of foam could cause concern.

I do get the question of stability, but you should be fine so long as you land on top and not on the edges. This could be solved by placing them against something.