4 Piece Brushes - Fiberglass scratch brush pen, brass bristles scratch pen, steel bristles tool and nylon tip tool. Flexible - Twist the end cap to change length and firmness of bristles. Multi-Functional - Great for circuit board cleaning, automotive rust remover, watch polishing, removing dirt and rust, car chip and scratch remover and more. Clean rings and other jewelry. Sanding Pen - Metal ferrules for improved durability. Fiber glass tip to fix paint scratches and battery terminals. The perfect rust remover for cars. Pouch - Plastic holding pouch for storing the scratch pens.