Lead

Leads are utility items used to leash and lead certain entities. Leashed entities can be tied to fences or other entities by the fence or entity while sneaking. A lead can be removed from an entity by shearing it.

Mob loot

Wandering traders always spawn with 2 trader llamas, each held with a lead. When a trader llama is detached, either by killing it or the wandering trader, dragging them far apart, using shears, or putting the llama in a boat or a minecart, the lead drops at the llama's position.

Leashing mobs

a lead on a mob ties the lead to the mob, allowing it to be moved by the player. Multiple mobs can be held by leads at once, but each mob held requires its own lead. Mobs can also be attached to other mobs with leads. It is possible to leash the following mobs and other entities:

These mobs can only be leashed when not hostile:

These mobs can only be leashed when not mounted by a hostile mob:

Leash knot

A leash knot is an entity created when the player right-clicks a fence post while having a mob leashed. It can be destroyed by attacking it, which detaches all mobs bound to the post and drops the leads.

Summoning

Using the command , it is possible to summon a leash knot without using a fence. A leash knot spawned this way does not have a leash attached to it.

Entity data

Leash knots have entity data that define various properties of the entity. :

: See Bedrock Edition level format/Entity format.

Trivia

The lead is named "leash" in the texture file. If a player goes to sleep while holding a mob on a lead, the lead remains attached. , when using the command to put a lead in a player's head slot, the item gets rotated and positioned in such a way that it looks like the player is wearing a monocle. , when placing a block on a fence and while leashing a mob or boat, the block prevents it from being placed and the leash knot places instead.