Sharpie Pen provides a smooth, high-quality everyday writing experience. Refillable pen delivers clean and concise lines that are permanent and smear-resistant. Barrel is made of stainless steel. The stainless steel cap features a clip so you can attach it to pockets, notebooks and more. Pen is easy to refill. Simply unscrew the ink cartridge and replace with a Sharpie ink refill cartridge.