Nylon/Fiberglass Scratch Brush Pen 2 Pack (Comes with Free How to Live Stress Free Ebook) ABS plastic body with an adjustable twist-up design and nylon brush; Comes with Free How to Live Stress Free Ebook Cleans various metals, rust, and other surface materials Nylon brushes are 1-1/4 inches (2.5 centimeters) long Pen length is 4-1/2 inches (10 centimeters); PVC carrying pouch