Hyper-Density Seals are weapons utilized by Sir Nighteye.
Sir Nighteye possessed a number of small, stamp-shaped items that each weighed five kilograms.
By throwing the seals at extreme speed, Sir Nighteye could attack from long range and supplement for his lack of a physical Quirk. A seal tossed by Sir Nighteye was powerful enough to destroy one of Twice's doubles in a single hit.
|Technology and Other Objects|
|Support Equipment||Air Force Gloves • Amplifier Jack • Artificial Vocal Cords • Capture Tapes • Costume • Full Gauntlet • Hydraulic Bracers • High Density Weights • Hover Soles • Iron Soles • Jet Pack • Quirk Amplification Device • Sevens Loud • Sharpshooting Gear • Wire Arrow|
|Weapons||Capturing Weapon • Capture Gun • Cement Gun • Claustro • Curious Flattener • Grenadier Bracers • Hyper-Density Seals • Taser Knuckle|
|Robots||Camera-Bots • Mini Conveyor-Bots • I-Island Security Bots • Villain Bots • Kanidoge's Mechs|
|Substances||Quirk-Destroying Drug • Trigger|
|Literature||Hero Analysis for the Future • Meta Liberation War|
|Miscellanous Objects||Provisional Hero License • Targets|