This listing is for a Forney brand .023" (0.6mm) Mild Steel MIG Welding Wire. This ER70S-6 classification wire is designed for general purpose welding applications and requires shielding gas for optimal performance. The spool contains 2 lbs (0.6kg) of wire, making it suitable for various home or light industrial welding projects. Ensure you have the appropriate shielding gas for use with this wire.