Oil Field & Oil Refinery Windsocks - Factory Direct - In Stock and Ready For Immediate Shipment - Contact Us Today - All Windsocks and Frames Manufactured In The USA.Our hitch mount windsock works great for showing wind direction and speed at the job site.It extends for use at the remote location and retracts while you are in transit to the next location. To retract, just push the fiberglass windsock pole into the steel tube housing and the detent locks the pole into the down position. To extend just pull the fiberglass windsock pole up to the upper detent postion and it is secured and ready for use. The windsock is calibrated to fully extend at 12 MPH. It comes complete with the 8"X36" windsock, extendable pole and a 3/4" diameter shank for the ball hitch hole and a bushing to adapt it to a 1" ball hitch hole.