400 pieces: 50 male bullet connectors + 50 female bullet connectors + 50 female insulating covers + 50 male insulating covers. A set of silver and gold color. Matching male and female bullet terminal connectors give you a tighter and more secure electrical connection Premium Quality: The terminal is made of high quality copper, with good conductivity. The insulating protective sleeve is made of non-slip and wear-resistant plastic, provides good wrapping and protection for exposed wires. Easy to use: Put on the 2 protective sleeves first on the wires that need to be wired. Then insert the end of the wires into the corresponding male/female terminals. Use a crimping tool to compress them. Connect the two terminals, and finally cover the connection with the protective sleeve. Wide Usage: Yeuri these Electrical wire terminal connectors are used for electrical connections and maintenance. Suitable for garages, electricians, mechanics, workshops etc. Used in cars, motorcycles, scooters, boats, snowmobiles, trucks, quads, tricycles, etc. Specification of Bullet Lug Electrical Connector: Color: silver, gold.