Safe-Hit Surface Mounted, Flexible Delineators (Type 1 - Hazard Marker) are round posts with a flattened top, a black oval cap and three 3" (76.2 mm) x 3" (76.2 mm) reflective patches. They're used with the Surface Mount Pin Lock Base. Safe-Hit Delineators are rated to withstand 12 vehicular impacts at 55 mph and rebound. They're impact resistant and stay in place even during prolonged exposure to winds and common, light impacts. Customizable options include delineator post height, post color and reflective patch color.