Material: the trailer extension cable is made of TPU, waterproof, wear-resistant, high temperature resistant, oil resistant, aging resistant, flame retardant, etc. Trailer extension cable (7 pin plug to 13 pins). Looped cable pops out for easy storage. Prevents the cable from dragging on the ground while towing. Suitable for 12v or 24v vehicles. Easy installation, powers your caravan, tug and truck, to avoid emergency disturbance. Designed to: connect your vehicle's lighting and electricity to your caravan or trailer's lighting panel. Suitable for trailers with European standards, establishing the connection between the vehicle and the additional trailer and transferring the electronic signal lights from the vehicle to the trailer. Quality assurance: Our products have undergone strict production and processing and quality assurance. If you encounter any problems during your use, please feel free to contact us and we will do our best to solve them for you. Type: Trailer Extension Cable Offline Line Length: 2 m Length of the working line: 1.6m material: plastic Features: waterproof Contact material: copper Insulation material: engineering plastic material: plastic Number of classes: 7 Number of needles: 13 Output voltage: 12V 7-pin socket PIN 1 - Yellow wire (left/hand direction indicator) PIN 2 - Blue wire (rear fog lights)< /p> PIN 3 - White wire (earth return) PIN 4 - Green wire (right direction indicator / H) PIN 5 - Brown wire (light right rear / H and number plate) PIN 6 - Red wire (stop light) PIN 7 - Black wire (left rear light / H and number plate) Note: Other items are not included, the color is based on the first picture, other pictures only show the effect. Due to the differences between different monitors, the pictures may not reflect the actual color of the item. Due to manual measurement. Please allow deviations. Thank you!