Features: This is a 12V trailer connector plug. It supplies power to your caravan, towing and truck. It is suitable For: 7-pin heavy European standard trailer. Made of aluminum, it is durable and can be used for a long time. This 12V trailer plug connector with 7 pins is a great option for boats and it's also great to be used on an RV, caravan, etc. Function: PIN 1 - Yellow Wire (Left/H Direction Indicator), PIN 2 - Blue Wire (Rear Fog Lamps), PIN 3 - White Wire (Earth Return), PIN 4 - Green Wire (Right/H Direction Indicator), PIN 5 - Brown Wire (Right/H Tail No. Plate Lamp), PIN 6 - Red Wire (Brake lights), PIN 7 - Black Wire (Left/H Tail No. Plate Lamp). Specifications: Design: 7-pin Operating Material: Aluminium Colour: Silver Voltage: 12V Applicable vehicles: for trailers, RVs Size: Length: 9.7cm3.82in ,Wide: 3.6cm1.42inHigh4.8cm1.89in Quantity:1Pc Note: 1.Transition: 1cm=10mm=0.39inch 2.Please allow 0-3cm error due to manual measurement. pls make sure you do not mind before you bid. 3.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you Package includes: (Without retail package) 1Pc x Durable 7 Pin Aluminium Alloy Plug Trailer Truck Towing Electrics 12V Connector (EU Plug)