BOLLARD COVER 4.5"x52" YELLOW w/RED RFL TAPE. Encor Commercial Products brand bollard covers have the primary function of improving and protecting the appearance of steel bollards in all their applications, whether indoors or outdoors. Thus, increasing the durability and service life of the pole. Made of thick polyethylene and reflective tape. Furthermore, it is stable against ultraviolet rays and is guaranteed against fading and cracking for a period of 5 years.