Efficient Connection: Use high-precision copper plating process to improve conductivity. Easy to install under soldering and crimping. Suitable for 0.5-1.5 square wire, wire diameter 1.6-2.5mm. Waterproof and Durable: Made of high quality environmental-friendly materials, with high chemical stability, electrical conductivity and oxidation resistance. Waterproof dustproof and fireproof, Safer than normal connectors. Easy to Install: Buckle design ensures accurate and complete insertion of the contact in the housing and prevents it from slipping out of the connector. It can also be easily removed when needed. Wide Application: Suitable for various wire connectors of motorcycle, scooter, car, truck, quad bike, caravan, marine, jet ski and boats etc. 352Pcs Set: 1-Pin, 2-Pin, 3-Pin, 4-Pin super sealed waterproof electrical wire connector sets with male and female copper nickel plated terminal and silicon rubber cable seal. Specification : Material: PA66 Color: Black Performance: waterproof Hole position: 1/2/3/4 holes< /p> Pin width: 1.5 mm (chip terminal) Wire specification: 1.0 square or less Current A number: 10A or less Working environment: -40~150C Quantity: 352 pieces