What is the use of Iron Rings on late game?

Hi, i'd like to know if the 1-4 added physical damage of Iron Rings is useful or not?

Thank you in advance.

Simple: Crafting.

Recipe: 7 Iron Rings + Rare "Paua" or "Coral" Ring
Reward: Rare "Paua" or "Coral" Amulet

Recipe: Iron Ring + Skill Gem
Reward: Resistance Ring (red gem = fire, blue gem = frost and green gem = lightning)


Source: http://blackrabbit2999.blogspot.de/2012/12/path-of-exile-recipes-list-and-guide.html

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BlackRequiem wrote:

Hi, i'd like to know if the 1-4 added physical damage of Iron Rings is useful or not?

Thank you in advance.

They're incredibly useful for Facebreaker builds endgame.
Not that good otherwise.

"

Gold is for the mistress -- silver for the maid --
Copper for the craftsman cunning at his trade."
"Good!" said the Baron, sitting in his hall,
"But Iron -- Cold Iron -- is master of them all."

Clearly Iron Rings are the superior choice of man-jewellery.