Guide post is made of high impact grade of PVC which is specifically formulated for outdoor applications. Flexible, durable,  reflective and easy to install. UV stable, could use for applications in direct exposure to sunlight. The color usually is white or gray. They can be installed with a base or directly install undergroud. Can add red , white, orange, blue, or yellow reflective tape. Easy to see at day and night. If quantity is enough, all colors can be customized. They are widely installed on highway road side. Buy guide post, pvc guid post, reflective guide post, reflective guide post at best factory price in Chengdu RongXiang Technology Co.,Ltd specilizing in manufacturing traffic safety equipments.