General description Sitesafe 450 x 600mm Heavy Goods Vehicles Must Not Be Reversed without Supervision sign is designed to enhance safety in areas where heavy goods vehicles operate. This sign serves as a clear warning to drivers, ensuring that they are aware of the need for supervision when reversing, thereby reducing the risk of accidents. Technical specifications Dimensions: 450 x 600 mm Material: Durable weather-resistant material Color: High visibility colors for maximum impact Other information