Baldur's Gate Wiki

HOLDRING.ITM is an undroppable ring that grants immunities to various spells, spell levels, all damage types and many status effects to the Statues (WK Altar Level) creatures.

The item is designed so nothing can affect the statue, such as AoE spells of most types, clouds, symbols, wands etc. As they are statues, curing petrification is also neutered. Even dispel magic effects and invisibility and just about any source or state will be prevented from touching the statue with this ring in possession.

Even targeting the statue is impossible as the player's cursor to select the statue sprite doesn't register the statue as an object that can be selected to attack or aim towards.

When the correct script is triggered, this item is removed from the Statue when it is animated and becomes a hostile creature.