Use Any Item: Rogues take pride in their ability to adapt and make clever use of whatever is at hand. This ability is an extension of that basic skill. Once learned, the effect is permanent. The ability allows the rogue to use any item, even items that are typically restricted to one class. This allows the rogue to use everything from wands and scrolls to might weapons that none but a warrior could otherwise use.
As its name implies, it allows rogues to use any item, weapons, armor (with exceptions of few) regardless of restrictions on class, alignment, race or ability scores, which includes the uses of any wizard or priest spell scrolls, but they still may not cast mage spells from their spell books wearing leather armor or above due to mage class restrictions.