Flowing Aura Of Metal Particles

There are several of these items with the same name, but with different keywords.

Object 'aura metal particles sleeves' type armor, extra flags glow.
Weight 5, value 42966, level 253.
Object Quality (1000 / 1000 hps)
Armor class is 51.
Modifies save vs spell by -8 continuous
Modifies damage roll by 10 continuous
Modifies hit roll by 7 continuous
Modifies armor class by -45 continuous

Object 'aura metal particles boots' type armor, extra flags glow.
Weight 6, value 34587, level 250.
Object Quality (1000 / 1000 hps)
Armor class is 51.
Modifies save vs spell by -6 continuous
Modifies damage roll by 13 continuous
Modifies hit roll by 10 continuous
Modifies armor class by -30 continuous

Object 'aura metal particles cloak' type armor, extra flags glow
Weight 9, value 38430, level 251.
Object Quality (1000 / 1000 hps)
Armor class is 52.
Modifies save vs spell by -12 continuous
Modifies damage roll by 6 continuous
Modifies hit roll by 3 continuous
Modifies armor class by -75 continuous