Crafted with 3 poles and 4 wires, you can trust the reliable and safe operation of our power inlet 's RV adventures. [Effortless Installation] Simplify your setup with the 50 amp RV power inlet, featuring user-friendly terminals for a secure connection. The twist-lock mechanism ensures your cord stays firmly in place without wobbling, enabling a hassle-free installation and operation process. [Weatherproof & ] Designed for resilience, the 50 amp RV receptacle comes with a twist-lock design and a weatherproof cover to protect against harsh weather conditions like rain, snow, and extreme heat, ensuring lasting durability no matter the environment. Please note:the physical slightly color difference or difference, does not affect the use, please do not mind, thank you! Colour:Black Material:Plastic Package Contents: 1 * 50 amp shore power inlet Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.