High-quality fabric: Made from premium cloth, the wind measurement sock is softer, lighter, and more durable, making it an excellent choice for accurate wind testing. Reflective belt: The wind measurement sock features a reflective belt with a visibility range of up to 300 meters, ensuring it's easily spotted even from a distance in low-light conditions. construction: This wind measurement sock employs technology, making it resilient against rain and snow, perfect for use in adverse weather conditions without compromising quality. User-friendly design: The wind measurement sock conveniently folds into a compact size for easy transport and storage. It can be effortlessly installed using a metal hook, requiring no additional tools or complicated setup. Windsocks are widely used in meteorology, chemical industry, environmental protection, agriculture, oil exploration and other industries.