EVO N Flexible Keep Left Traffic Bollard Night OwlEVO N Flexible Keep Left Traffic Bollard Night Owl A perfect solution for highways and non highway applications, the Flexible Keep Left Night Owl Traffic Bollard is a new, low energy absorption, highway sign providing an attractive, logical evolution in the iconic design of Keep Left Bollards. A non illuminated and passively safe bollard that are designed and independently tested to be fully compliant for use on the UK highway. The system comprises of