You'll get BRAND NEW (10 pcs - TEN) Soldering Iron Tip Cleaners/ Yellow Cleaning Sponges The soldering iron sponge prevents oxidation, overheating and wear of the soldering iron tip, removes solder residue and keeps components clean, so you can use it with confidence. The tip cleaning sponge is environmentally friendly, durable, ecologically safe, and has a high coefficient of expansion. In addition, this sponge is a special sponge that is resistant to high temperatures, absorbs water and expands, and has a rough and porous surface, but it is as soft as cotton. [Fast Expansion Adjustable Size]--- The sponge use to clean a soldering iron is very compact, but when it gets wet it quickly expands to the right volume and size. If required, the sponge can be cut to size with sharp scissors or a rug knife to suit your needs. perfect for soldering jobs or cleaning soldering iron tips. Size Approx. 2" x 1.5" Do not forget to saturate your sponge with water before use or you will burn/melt it.