Marking the edge of the taxiways and roads. ICAO and CAP 168 recommendations on size and colours. Highly visible, flexible and safe in the event of run-down. Installation 30 metres centres on straights and 7 metres on curves using the Ground Fixing Pipe and Auger. For the day and night marking of taxiways a vertical Blue Linlaner 375mm Post and 250mm Blue Retroreflective Sheath is necessary to comply with ICAO requirements. Internationally approved and used by Commercial and Military users. Complies with ICAO Annexe 14 chapter 5 and CAP 168, on colours.