Conductor type: Copper Insulation material: PVC AWG SIZE 10 This 10/3 25 FT, NM-B Insulated Copper Conductor is perfect for a wide range of electrical applications. It is made from high-quality copper and is insulated making it durable and reliable. The conductor's are Black,Red,White with a bare copper ground, making it easy to identify and use in your projects. With a solid conductor design, this wire is flexible and easy to work with, making it ideal for a variety of electrical applications, including home wiring, Dryer circuits, Water heaters or anything needing a 30 amp circuit. Whether you are a professional electrician or a DIY enthusiast, this wire is sure to meet your needs.