Brass wool /Welding head cleaning ball Pure brass material, not attract the magnet! Weight: about 20 grams Melting point:1000℃ Pure brass mesh for remove tin,  can remove oxide and solder of soldering iron head!Don't need to add water to use, this product 's main advantage is that, when clean solder iron, the temperature drops only 2-3 degrees, can immediately weld after cleaning the solder, the welding process smoothly。 Usage: clean the welding head, silk soft can also be scrubbing machine equipment Product features: 1. The suction tin ball using copper wire woven silk soft. 2. The solder ball to improve traditional absorption sponge water heating wire oxidation and temperature drops, short circuit, etc., simple structure design, use of light. 3. The sponge with water cleaning the welding head, easy corrosion welding head, clean strength is small.And the strength of copper wire ball better than sponge cleaning, using copper wire material containing flux to lengthen the service life of the welding head.