Cat's eye (road)
Appearance
![](http://178.128.105.246/cars-http-upload.wikimedia.org/wikipedia/commons/thumb/4/43/M9_motorway_Carlow_Ireland_catseyes.jpg/220px-M9_motorway_Carlow_Ireland_catseyes.jpg)
In the context of road signalisation, cat's eyes is the name for special reflectors. When light shines on them, they will reflect it back in the same direction. Usually they are small cylinders. Very often they signal the presence of objects or they alert the driver of a danger such as a bend in the road.