... PVC Cone | Rubber Cone /Flexible Post | Spring Post Traffic cones, also called road cones, safety cones, pylons, or Witches Hats (now considered objectionable), are ... is to stay in place for longer periods of time. Traffic cones are designed to be highly visible and easily movable. ... cm to a little over 1 m. Traffic cones come in many different colors, with orange, yellow and red being the most common ...