Workmanship: The tips are pure copper for fast heat recovery and optimal performance The tips are plated with iron,, and chromium; a resistant coating that offers enhanced durability and longer product life Special Design: These pointed soldering iron tips provide in tight spaces : Tips has been pre-tinned with lead-free solder Application: For use with 30W soldering irons and many other inexpensive 30W soldering irons Package include: 5 Pcs x Soldering Iron Tips, Manufacturer: Rulbelok