This 290PCS Automotive Connector Terminal Kit includes a complete set of male and female terminals in 21 different types, paired with a professional crimping tool for reliable electrical connections. Made of high-quality tin-plated copper, these terminals offer excellent conductivity, corrosion resistance, and long service life. The kit features versatile sizes (1/1.5/1.8/2.2/2.8/3.5mm) to accommodate various wiring requirements, with a snap-lock mechanism ensuring precise insertion into connector housings. The included crimping tool provides secure, quick crimps without soldering, making it ideal for both professional mechanics and DIY enthusiasts. Designed for use in 12V systems, these terminals are perfect for cars, motorcycles, trucks, boats, jet skis, scooters, and other marine applications. The terminals come organized in a storage case for easy access, making this kit an essential solution for all your automotive electrical repair and modification needs.