Features: Improve Your RV or Yacht Electrical System: This set of double row 4-way busbars with M8 M10 terminals is perfect for upgrading your vehicle or boats battery connections. Durable and High-Quality Materials: Made from ABS, zinc alloy, and copper, these connectors are built to last and provide reliable-performance. Ideal-for DIY Enthusiasts and Professional Installers: Whether you're a seasoned pro or just starting out, these busbars are easy to install and will improve your electrical system efficiency. Perfect for Boats, RVs, and Other Vehicles: Use these busbars to connect multiple batteries in your boats or RV, or upgrade the battery connections in your car, truck, or motorcycles. Customize Your Electrical System: With 4 separate rows of terminals, you can easily connect multiple batteries and accessories to your electrical system, giving you more control over your power supply. Specifications: Material: ABS+Zinc Alloy+Copper Size:Approx.13.5x7.5cm/5.31x2.95inch Style:M8/M10 Package Includes: 1 Set Terminals note: ①.Please allow 1-2cm errors due to manual measurement, make sure that you do not mind before you order. ②.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thanks for your understandings.