[Bullet Plug and Socket with Insulating Sleeves] You only need to connect the male and female terminals at both ends, and then anchor the male and female terminals to easily complete the wiring. Quick connection. [Excellent Material] The bullet terminals are made of brass-plated tin, which has high conductivity and anti-oxidation. The insulating sleeves are made of nylon, flame retardant insulated and safe.< /p> [Durable]: Each bullet connector in the electrical connector kit is made of thick tin-plated brass, which resists corrosion and holds the wire tightly when crimped. [Safe and Easy to Use] These bullet connectors meet all electrical standards and are ideal for electrical instruments and automotive applications. Whether you're working on your car wiring, your home, or a science project, our connectors will make sure everything stays together properly. [STAY ORGANIZED] - The crimp connector set comes in a storage box that is easy to store and transport. You can get 90pcs silver