The product has never been used, the packaging was damaged during transport. Unopened product, repacked in our warehouses, in perfect condition, warranty available. Safety protection: quick battery terminals with red + and blue -, easy to identify to prevent electric shock. Quick release battery connector: simple and convenient, designed for users who frequently change batteries. Quick installation: connect the red to the positive pole and the blue to the negative pole; it can be quickly connected, a pull and a pull can be removed, and the set can be connected with a click. Compatibility: The rated voltage is 500 amps and it can withstand a continuous surge of 800 amps at 12 volts, suitable for cars, motorcycles, boats, trucks, etc. with 12V batteries. Product packaging: 2 pairs (2 × positive, 2 × negative); + Inner diameter of pole: 19 mm, - Inner diameter of pole: 17 mm Battery connector Product description Features: Easily identifiable red and blue caps reduce the risk of electric shock Copper plate battery terminal Designed for battery terminals, can be quickly disconnected and released The battery connector is very convenient for users to connect or install separately Suitable for users who need to change batteries frequently Specifications: Product name: Quick battery terminal connector Product material: Copper + Plastic shell Product weight: 90g (single weight) Product size: Approx. 68 mm x 46 mm x 25 mm Product specifications: Positive electrode inner diameter: 19 mm, Negative electrode inner diameter: 17 mm Suitable for battery capacity: 45AH-200AH Product packaging: 2 × Red quick battery terminal connector 2 × Blue quick battery terminal connector