All products come with a basic 18-month warranty. If you have any problems, please feel free to email us. We’ll respond to your request quickly, hassle-free. Features: Solid Brass 12V/24V Car Battery Clamp Set Battery Terminal Connectors with Color Coded Wing Nuts Made of solid brass Quick release car battery connectors Suitable for most boats, ships, minibuses, motorcycles, cars, trucks, caravans and other electric vehicles, or other electrical equipment< p>Specification: Material: plastic and metal Color: red and black Quantity: 1 pair (left and right) Inner diameter (positive): 17-19mm Inner diameter (negative): 15-17 mm Package included: 1 x pair of battery terminals