This item is impossible to deal with another account.
Take this certificate, do upgradable Armor in prontera hall, If he fails on the upgrade when the item to +12,the item will not break and it will stay at its current upgrade level. -A Single Use.-

[iRO Description]
This item is not tradable.
With this certificate, you are guaranteed to refine your level 1 armor to 12 without any failure. Find the Refine Master in Prontera.
- only for 1 time -
[Refine Master] prontera,184,177,0,100,0,0