General description These 2Pcs Quick Release Battery Clamps are designed for easy and efficient battery changes in boats, trucks, cars, and vans. They feature a professional design that fits both top mount and side mount batteries using standard mount adapters. Ideal for users who frequently change their batteries, these clamps provide a simple and convenient solution. Technical specifications Quantity: 2 pieces (1 positive and 1 negative) Positive pole inside diameter: 19 mm Negative pole inside diameter: 17 mm Usage To change the battery, lift the insulating shell to quickly remove the old battery. Insert a new battery, which will be firmly fixed in place.