Features: brand new and high quality This 7-way circular RV-style 7-pole connector provides a safe connection between your trailer and tractor, and is widely used in RV camping horse trailers. Waterproof design. This 7-way blade connector is different from other products on the market. It adopts detachable hardware design, easy to splice, and can well protect the terminals from bad weather and dangerous road conditions. Reliable connection. This standard 7-way wiring connector is designed to connect your trailer to the trailer's 7-way circular blade connector, powering tail lights, turn signals, electric trailer brakes, and ground connectionsDurable structure. Heavy-duty molded structure, sturdy ABS plastic for shell, has the characteristics of waterproof, corrosion-resistant and easy to install. The extra-large finger grip for safe disconnection enhances the appearance and makes it easy to remove the plug. Specifications: Material: Nylon Size:9.5x7.4x4.5cm/3.74x2.91x1.77inches Color:Black Product needle number: 7p 12V voltage Product function: connect to original car signal system 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. Package includes: 1x Adapter