Made of insulating flame retardant PVC nylon with a high level of protection. The wiring head is made of high-quality red copper, which has good electrical conductivity, and the surface is tin-plated, which is resistant to high temperature and aging, and durable in use. Easy to Use: Insulated flares make it easy to insert wire, and corrosion resistance and high conductivity maximize current flow and prevent fraying or breaking of wire ends. Practical Design: These tips are safe to use and reliable in connection, which helps you complete the wiring quickly.They prevent wear or breakage of the wire end and protect the wire while reducing potential safety hazards. Wide applications: Widely used in electric power, car amplifiers, speakers, battery terminals, various household appliances, industry, chemical industry, equipment, lighting, control systemspower control, equipment switches, batteries, etc.