Features: - Made of high-quality material, durable and sturdy, wear-resistant and corrosion-resistant, with high thermal conductivity and high electrical conductivity. - You don't need to use any other flux powder with aluminum alloy as the weld core and coating serve as the base. Very convenient and easy to weld. - Widely applied to welding almost all white metals including aluminum, aluminum alloy, cast aluminum, aluminum-magnesium alloy and so on. Specifications: Color: As shown Material: Aluminum Length: About 33cm Diameter: About 2mm Quantity: 50Pcs Package Contents: 50Pcs x Aluminum Welding Wires .