Large Shield +1

While holding this shield, you have a bonus to AC of +1. This bonus is in addition to the shield's normal bonus to AC.

Large  shields can be made of metal or wood, and provide substantial  protection to those carrying them. They typically extend to cover one  flank of the creature carrying them, though they are not so large that  they hinder movement. Unlike with small shields, the wielder of a large  shield has little to no ability to manipulate objects with the shield  hand.