What does Green Dragon [Cash shop] do?

What does Green Dragon Orb in cash shop do?

 

I believe it restores a weapon to the previous refine state after it breaks.

 

Weapon recovery orb. The details can be found in refine guide here: http://forums.playredfox.com/index.php?threads/weapon-refine.117/#post-1947

 

So, Green orb will keep the previous upgrades while Red orb will lose it, but reset the hardness. Let say I used Green orb to get back my weapon. But I broke it again, can I use the orb to restore it once more time? Does it keep the record of the last weapon? I mean that I broke my weapon today, can I restore it next month?

 

One orb use only will go from "can be restored" to "cannot be restored"