7-pin to 4 pin trailer adapter connects the major vehicle and the additional trailer， and transfers the electronic signature from the vehicle to trailer.

Features:
Plastic housing adapter plug.
7 way flat blade trailer end connector to 4 pin round blade trailer.
For use with all trailers that have 4 pin round blade wire plugs.

Specifications:
Item Type: Electrical Plug !#!amp!*! Sockets
Item Name: 7-Pin to 4 Pin Trailer Adapter
Material: Plastic
Color: Black
Input: 12V
Product Size: 9 * 7.5 * 4cm / 3.5 * 2.95 * 1.6in 
Product Weight: Approx. 110g / 3.9oz
Package Size: 16.5 * 10.5 * 6.5cm /6.5 * 4.1 * 2.6in 
Package Weight: Approx.110g / 3.9oz

Package List:
1 * 7-Pin Trailer Plug