Hitbox
Expands the hitboxes of other entities.
WARNING
This is detectable on a majority of anti-cheats.
Multiplier
How much to expand hitboxes. 1.0x is vanilla size. 1.2x makes them 20% larger, leading to a much easier time hitting entities.
Range: 1.0-10.0x.
TIP
1.1-1.2x for subtle expansion. High values make the hitbox obviously oversized and can cause you to "hit" at unusual ranges.
Players only
Only expand player hitboxes, leaving mobs unchanged. On by default.
Weapon only
Only apply the expansion while holding a weapon.
Show modified hitbox
Draw the expanded hitbox as a visible outline around the entity.