Anti-corrosion: The surface of the product is galvanized to extend the service time of the product Fastest arrival: Select shipping to get your product the fastest Best deal: Two products per order, two for the price of one. The package includes: 4*Chicago Fitting, 8* Include Safety clip, 4* Spare Rubber Gromet for each order Best after-sales service: If you have any problems with the products, please feel free to write to us, and we will reply to you within 24 hours.