What is one-off?

A one-off is a unique, individual item that is produced as a single piece, rather than part of a mass-produced batch. One-offs are often created by skilled artisans or craftsmen and may be made using traditional techniques or modern technologies such as 3D printing. One-offs are typically made for specific purposes, such as custom car parts, bespoke fashion items, or commission-based art pieces. The term "one-off" can also be used to describe a unique and unrepeatable event or occurrence, such as a once-in-a-lifetime experience or a unique performance.