Product Meterial: The terminal block are made of tin-plated red copper and the insulating sleeves are made of nylon, high conductivity, anti-oxidation, durable enough for your use.
Package Contents:2.8mm/4.8mm/6.3mm male and female crimp terminal connector block 250pcs and 125pcs insulating sleeves total 375pcs packed in a plastic box.
Instructions:White and transparent insulating sleeve matching crimp terminal ,safe to use. You just need to connect the male and female terminals at both ends, and then the male and female terminals docked to complete the wiring easily.
Application:Widely used to home appliances, auto, audio system for battery or rocker switch quick connecting/disconnecting.