Pixiss Scratch Brush Pen Set With Replacement Tips, Fiberglass, Steel, Brass, Nylon, 5-inches Pen Style Prep Sanding Brush 4-Pack For Corrosion, Rust, Jewelry, Circuit Boards and Auto Body Work.

• 8 Pieces - The yellow scratch pen has brass bristles, black has steel bristles, the green has a nylon tip and red has fiberglass bristles. Also includes 4 replacement tips (one of each type).
• Flexible - Twist the end cap to change length and firmness of bristles.
• Multi-Functional - Great for polishing, cleaning, removing dirt and rust, and more. Clean rings and other jewelry.
• Tough - Metal ferrules for improved durability.
• Replacement Tips - Also included is one replacement tip of each type.