Durable And Waterproof MaterialThe Outdoor Wind Measuring Bag Is Made Of Waterproof Polyester, The Thick Design Is Durable And Resistant To Long-Term Damage From Wind, Rain And Sun. The Light Weight Helps To Maintain The Shape Of The Windsock And Achieve Optimal Wind Direction.Night Safety ProtectionThe Windsock With Reflective Belt Can Indicate The Direction And Intensity Of The Wind. Night, Which Leads To A Wider Field Of Vision And A Safety Warning.Brightly Colored WindsockNew Design Windsock, Easy To Fly, Sleek Silhouette, Bright Orange Color With Belts Reflective Fluorescent Lights.Wide ApplicationThe Waterproof Windsock Is Easy To Install, Can Be Widely Used In Airports, Meteorology, Industrial Sites, Chemical, Environmental Protection, Agriculture, Oil Exploration And Other Industries.Sleeve Size The Length Of The Windsock Is 80 /31 Inches, The Air Inlet Diameter Is 20 /7, 9 Inches.