Package contains 12 Pcs Soldering Iron Cleaning Pads Sponge - A must have accessory for those who need to do soldering work. These sponge can remove solder residue and keep PCB components clean. These soldering iron sponges are ideal to be used as replacements of old sponges. They keep your welding tip clean. Help on the tin and antioxidant with strong absorbability. The wet sponge is the most common method of tip cleaning. It is Cost-effective, Highly-efficient at cleaning flux acids and sponge can be cleaned for extended use. High Resistance Sponge Removes all Solder Residue Low cost and high-quality solder sponge Ideal replacement for the old sponges. Solder tip cleaning sponge removes oxides and excess solders from soldering iron tips and provides extended tip life and precise soldering. Note: Please don't always soak the sponge in water. Use to keep your soldering tip clean moisten slightly before use.