The Hakko Soldering Tip Cleaner 599B is the ideal cleaning alternative to the traditional wet sponge. The non-abrasive brass shavings are tough enough to scrub residual solder from your soldering tools without your soldering iron becoming cool. The Hakko Soldering Tip Cleaner 599B cleans your soldering iron tips without water! The 599B is made from coils of brass, which is softer than the tip plating yet harder than the oxidation that forms on the tip. To clean the tip, simply plunge (stab) the iron tip into the coils. Features: Shell design keeps the solder from splattering It will not reduce the tip temperature This is a great alternative to the conventional wet/damp sponge