Soldering irons work best if they're clean!
This tip cleaner, made of low abrasive brass shavings, won't drop your irons temperature like normal sponges or damage the tip.
With an anti-slip pad on the base it won't move around you workbench, and being made of brass it also won't rust.
This cleaner means less mess, a constant temperature in your soldering iron and a quicker workflow, making it almost essential if you're doing a lot of soldering!