What this product is Enameled wire also known as insulated copper wire with a pure copper inner core and a surface insulating coating. It uses a polyester patent leather type outer layer. What you get 1 x enameled wire (500g / 17.6oz) Key benefits Direct weldability: can be soldered directly for faster, easier assembly. frequency resistance: designed to perform reliably under frequency conditions. Portability: compact and easy to carry for work on site or in the field. General reliability: standard electrical performance and construction suitable for a range of winding and windingrelated tasks. Material and construction Inner layer: pure copper Surface: insulating paint Outer layer: polyester patent leather Performance specifications Pressure resistance: 3000V5000V Temperature resistance: 130180 degrees Size and specification information Color classification displayed by the system refers to the wire diameter (specification). The copper wire follows national standard specifications. Specification refers to the diameter of the drawn copper wire, that is the inner diameter without the paint film. Use scenarios and applications (23 practical examples) Winding coils for motors, transformers, inductors and other electrical components that require enamel coated copper windings. DIY electronics projects and RF coil construction where direct welding and frequency performance are important. Rewinding, repairing, or upgrading enamel coated wires in small to medium electrical assemblies.