400 Pcs 3.9mm Male and Female Connector Kit with Insulating Sleeves for Car Motorcycle, suitable for 0.3-1.5mm². A perfect kit for your motorcycle's electrical system. Specifications: Connector Material: Copper, Tin Insulating Sleeve Material: PVC, Nylon Color: Silver, Gold Size: 3.9mm diameter Features: Made from high-quality copper Durable Corrosion-resistant Low resistance for optimal electrical flow Size and Quantity: Total Quantity: 400 pcs 50 pcs Silver Male Bullet Connectors 50 pcs Silver Female Spade Connectors 50 pcs Plated Male Spade Connectors 50 pcs Plated Female Spade Connectors 100 pcs Male Connectors with Insulating Sleeves 100 pcs Female Spade Connectors with Insulating Sleeves Description: Surface tin-plated for anti-oxidation. The outer tin layer prevents the copper core from prolonged exposure to air, thus avoiding patina formation and maintaining good electrical conductivity. All copper cores provide excellent conductivity. Inner core made of pure copper, with high load capacity, low resistivity, good conductivity, and stable, reliable conduction. PVC material ensures excellent insulation. Usage Instructions: 1. Insert insulating sleeves into the cable. 2. Insert the connectors. 3. Crimp the connectors with pliers. 4. Crimp the other connectors. 5. Connect the male and female connectors at both ends. 6. Connect the insulating sleeves together. Thickened material, quality guaranteed. The outer layer is tinned for good electrical conductivity, convenient for long-term use. Fast and convenient wiring, improving work efficiency.