An accessory kit covers the components that fail mid-session rather than the ones you plan to replace — a torn flight or a snapped shaft ends a night without spares and costs thirty seconds with them.

The other argument for a kit is that it lives with your darts. Spares in a drawer at home are no use at a club, and the point is having them in the case when something goes.

For a player who has settled on a setup and wants it to keep working, this is a more useful purchase than another barrel — less exciting, and considerably more use over a season.