About The Product: Suitable For European Standard Trailer. The Trailer Plug Is 13+1 Pin Type. Each Hole Is Jacketed For Good Connections. Cross-Shaped Slotted Copper Needle, With The Female Needle, Cross-Type Slot Size (Slot Size Is Not Stable), Frosted Surface, New Materials. All 2008 Caravans Now Come With The Matching 13 Pin Plug.Functions And Applications: N&S Type 13+1 Pin Plug Easily Plugs Into Your Trailer'S Socket, Makes A Secure Connection Between Your Main Vehicle And The Additional Trailer; And Makes The Trailer/Caravan Easy To Switch On All Your Electrical Appliances. Tow Bar Screws Can Transfer Electronic Signal Lights From The Vehicle To The Trailer. Provides All Road Lighting (Including Reverse). Utility Vehicles, Trailers, Rvs, Cars, Boats, Etc.Waterproof: Waterproof Material, Can Be Waterproof For All Road And Weather Conditions. And The Trailer Tow Socket Is Used With Metal Aluminum Housing, Prevent Rust And Improve Appearance.Easy To Install: 13 Pin Trailer Socket Without Cable Is Used To Connect Vehicle Lights To The Trailer With Ease. Plug And Play Design, Insert Into Socket, Twist And Lock, No Need To Change Cables.Perfect Choice: Caravan Electric Towing Socket Can Make Vehicle And Caravan/Trailer Compatible When Towing. Can Make Your Life More Convenient And Solve The Problem Of Not Installing The Socket. All Of Our Products Are In Stock And Ready To Ship Immediately.