HIGH-QUALITY MATERIAL: Our battery terminals are made of high-quality zinc alloy, which is corrosion-resistant and durable. They offer a longer service life compared to traditional copper and provide excellent conductivity to help reduce voltage loss. Designed for long-term use. Positive and Negative Pole Distinction: Our battery terminals are clearly marked for positive and negative polarity to help prevent electrical hazards. Ensure proper terminal connection for correct polarity. The improved material enhances conductivity and helps reduce heat buildup. EASY TO INSTALL: The fine threading on our battery terminals allows for smooth installation and secure tightening. Ensures a reliable connection and helps prevent accidental loosening when the power is off. Wide Application: These battery terminals are compatible with standard 12V and 24V batteries, suitable for use in cars, trucks, motorcycles, marine vehicles, buses, and electric vehicles. Package Content: Includes 2 pairs of silver-colored battery terminals. Weight: 109g per pair. Voltage rating: 12V or 24V. Positive terminal: 17mm, Negative terminal: 16mm. Durable design for reliable performance.