Airport Windsock Corporation 13" X 54" Orange Windsock and 13" Ball Bearing Frame USA Made 100% USA made, durable urethane coated nylon airport windsock Designed to fit onto an 13" diameter frame The windsock has an 13" opening diameter by 54" length This kit comes with the windsock, our heavy duty ball bearing frame and cable ties to attach the windsock to the frame. The frame is a heavy duty, powder coated steel with double ball bearings.