ITEM NAME:Pure Copper Marine Battery Terminal Connector Kit with Anti-Corrosion Protectors Product Description Product features: Product information weight: about 110g Size: about 12 * 5 * 4cm Gross weight: about 110g Material: Pure brass Bronze marine battery terminal kit with 2 anti-corrosion protectors. Inner diameter of + Pole: 19MM, -Pole: 17MM. Suitable for boat ferry or other vehicles. Max Current: 200A. More conductive and efficient than lead battery terminal equivalents. New with Retail Package. For More Battery Disconnect Switches, please search ASIN code: B01GMPPYYI This is universal battery terminal for inner diameter of + Pole: 19MM,-Pole: 17MM battery pile head. However, some minority models may be smaller size: Inner diameter of + Pole: 15MM,-Pole: 13MM of 11-13mm. Please measure your car battery pile head first, then decide to buy the right size..Gross weight: about 110g. Max Current: 200A. Material: Pure brass. Size: about 12 5 4cm. Product information weight: about 110g. We will try our best to reduce the risk of the custom duties. Product features.