To ensure optimal performance, start by thoroughly cleaning the surface where you to apply the markers. This step is crucial for removing any dirt, water, or grease that could interfere with the rectangle. Each pack includes multiple markers, providing ample opportunity for extensive application across various surfaces. These markers are designed to offer high visibility and durability, making them ideal for use in tunnels, on guardrails, and other areas where enhanced safety and visibility are required. The double-sided, double-yellow design ensures that the markers are easily seen from multiple angles, contributing to improved safety and guidance. Features -Color:Multi -Material:Acrylic -Size:11.70X4.40X3.00cm/4.60X1.73X1.18in -Sturdy acrylic construction: these markers are made from durable acrylic material, ensuring they can withstand harsh weather and environmental conditions -Enhanced reflectivity: the markers offer sturdy reflective capabilities, making them highly visible in lowlight conditions and improving road safety -Simple installation: designed for easy attachment and removal, these markers provide convenience and adaptability for various uses -Versatile usage: ideal for a range of vehicles including cars, trucks, and motorcycles, these markers are practical and versatile -Sufficient quantity: the set includes many markers, providing enough to cover multiple areas or vehicles, catering to diverse requirements Package list: 6 x Road Reflectors