Guild Wars 2

hi this is a question for a dev ..what is the difference between a offensive fractual ring
and an offense
people from my guild are saying they both give agony defense and if this is true why have the different slot?
need an explanation if someone could

http://wiki.guildwars2.com/wiki/Infusion

that link didnt give any info on my question

Perhaps you could dig deeper. Everything is there.

i read it twice and no where on there does it answer my question
if it does and am going senile feel free to copy paste the part where it says offensive rings are the exact same as defensive rings in giving the equal amount of agony resist

Ascended equipment has infusion slots. These slots can be either offensive or defensive slots. The three types of infusions are: offensive, defensive, and omni. You can upgrade ascended equipment with an offensive slot with an offensive infusion. You can upgrade ascended equipment with a defensive slot with a defensive infusion. Omni infusions can be applied to either offensive OR defensive slots. All individual infusions provide +5 agony resistance. Offensive infusions can provide the +5 agony resistance along with +5 condition damage, power, or precision. Defensive infusions can provide the +5 agony resistance along with +5 healing power, vitality, or toughness. Omni infusions can provide +5 agony resistance along with +5 condition damage, power, precision, healing power, vitality, or toughness. Ascended equipment on it’s own provides no agony resistance. But when you infuse the equipment you gain +5 agony resistance. I hope this helps.