Flexible Delineator Post are a great product for bike lanes, construction lanes and curb barriersIn-ground, curb, or surface mount are available. Many colors and lengths are available from fiberglass highway markers to spring-loaded cable flexible delineators for high impact areas. Made to take up to 25 - 50 hits by a vehicle before they need to be replaces. Reflective highway road markers and flexible highway delineator post made withstand the ever changing highway conditions. Highway Markers, Safe Hit and Impact Recovery Products available. These products meet or exceed MUTCD & FHWA crash test specifications and certifications.