A twin pack of Weller solder station replacement sponges - part No. 0052241999.  Weller solder sponges are designed to remove oxides which develop on the iron's tip and also to remove excess solder.  

A brand-new 2.0mm soldering iron bit, genuine Weller part - No.: 0054118799 (PT L7). Supplied in sealed bag.  Longlife tips are made from pure copper, then iron plated for long life and chromium plated to prevent oxidation.