Features: Accepts oversized 1 or 0 car wire as well as 1 or 0 and 2 or 0 welding cable. Made from durable aluminum alloy and nickel plated for optimal conductivity, it ensures stable power connection and smooth current transmission. Perfect for enthusiasts who love to customize their vehicles and create a powerful experience. Whether you are upgrading your vehicle's sound or showcasing it at gatherings, this amplifier input reducer provides reliable functionality and improved sound quality. Take your driving experience to the next level with this easy to install amplifier input reducer that delivers strong and stable sound output. Specifications: Material:Metal Type:Double Holes,Single Hole Note: Please allow 1mm errors due to manual measurement. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1Set Amp Input Reducers