The Hollow Ring is a Demon Unique ring with no boss attached: it drops anywhere in Nightmare, most often from N10 up (rarer below that home difficulty, never above it), and nowhere else. Every copy is item level 100, and there 0.3% of what falls comes up Unique. It is built on Immaculate Voidglass Ring — step 6 of the Voidglass Ring line, item level 80 and up.

It always rolls the same numbers: +22 Power, +36 Power, +12% Power, +42% Void Damage and +52% Critical Damage.

One Unique drop in 40 is a Mythical copy: the same item carrying 15–25% Mythical Energy that boosts every stat on it and can never be changed; the 15% floor is 10 times as common as the perfect 25%.

On top of that it carries The Hollow Ring — Special damage +25%; +20 Critical Damage.

“There is nothing inside the band. Look closer and there is less.”