Bettomshin Soldering SpongeSpecifications:Length:55mm/2.17Width:55mm/2.17"Height:11mm/0.43"Material:SpongeColor:blueProduct description:1.This sponge uses a rough but soft surface to wipe away the oxide layer and dirt on the welding head. It is not polished like sandpaper, so there is no need to worry about the wear and damage of the welding head.2.Rub the soldering iron on the high-temperature sponge several times to grind off the oxide layer of the soldering iron tip, exposing the fresh soldering iron tip inside, which can be well soldered.Package Content:10Pcs x Soldering SpongeNote:1.The size of the product are manually measured, please allow slight errors, thank you for your understanding.2.The actual product and the color of the item shown in the picture may be slightly different from the actual product, please refer to the actual product.3.Please pay attention to the size of the item before you purchase it.