Genuine Hakko Replacement parts for your FX888D Soldering Station sourced from named UK suppliers (these are not cheap imitations that fall to pieces after a single use). The A1559 Soldering Tip cleaning sponge is used wet to clean solder debris off your soldering tip to keep it in top condition and extending its working life. The A1561 soldering tip cleaning wire is for removing harder deposits / semi-dry solder from your soldering tip.
Keeping your soldering tips clean is vital to ensure that they last.
The more units purchased the better price I can provide - the majority of cost is postage so I can combine units and pass the saving onto you. Please message me for large quantity and I can set up pack sizes if required.