A metal pen refers to a writing instrument whose body (barrel and often the cap/clip) is constructed primarily from metal, as opposed to plastic or other materials.

Metal pens are often valued for their durability, weight, and premium feel.

Common materials used for metal pens include:

• Stainless Steel: Known for being hard, durable, corrosion-resistant, and offering a clean, sleek, often low-maintenance look.

• Aluminum (or Aluminium): Generally lightweight, corrosion-resistant, and can be anodized in various colors.

• Brass: Offers a significant, satisfying weight and can develop a unique look (patina) over time as it reacts with the oils on your skin.

• Copper/Bronze: Also heavy and develops a distinct patina over time, giving them a vintage or "heirloom" feel.

• Titanium: Extremely strong and light-weight, offering a high-end, practical option