27 in. Airport Windsock (Complete)

A small calibrated windsock for accurate wind speed and direction information. Ideal for runway thresholds, heliports, hangars and private strips—house, garage, barn, boat dock, stadium, etc. Not a toy—a real honest-to-goodness windsock. Specially designed with an internal frame which keeps the mouth open at all times. Calibrated to be fully extended at 15 miles per hour, the windsock provides accurate wind information in breezes as light as 2 knots. Chrome-plated steel mast is adjustable in length from 33 in. to a full 4 1/2 ft. The fluorescent sock measures 27"l x 6 1/2" dia.