Battle Wire (5e Equipment)
From D&D Wiki
Martial Melee Weapons
The Battle Wire is a long spool of thin steel, nearly 8 feet, delicately woven together like a braid. It's thick enough to be swung around and be durable, but thin enough to be sharp and concealable. The ends are weighted cylindars of metal, making the weapon ideal for slashing out like a whip. It resembles a steel jump rope, and can be used with one or two hands. Using two hands, you hold the weapon almost like you would a classic jump rope, proficiency allowing you to pull off amazing twists, twirls, and lashes during close combat. Using one hand, you hold the weapon like a whip with both handles in one hand, making a loop, and flinging one of the cylinders out to slash your target with the razor wire.
If you are proficient with the battle wire, you add your proficiency bonus to disarm checks while wielding it.
When you wield the battle wire in one hand, it is also considered to have the reach property.