Lead

A Lead is an item crafted from five string, primarily used to leash and guide passive mobs. It can be attached to animals such as horses, llamas, and bees, allowing players to move them without a saddle. Leads can also be tied to fences, preventing the attached mob from wandering away. They can be found in chests in structures such as woodland mansions, or obtained by breaking a wandering trader’s leads when their llamas are detached.