Description: * Made of high-quality material, light weight, to prevent damage from wind, rain and sun. * Easy to install, widely used in meteorology, chemicals, environmental protection, agriculture, and other industries * Easy to fly, bright colors and refective stripes. * Secured with solid braided refective strings and durable metal clips. * To let you get the experiences of detecting wind direction with red reflective tapes. Specification: Material: Waterproof oxford cloth Color: Orange+White Size Chart: 60cm: Length: Approx. 60cm/ 23.62inch, Inlet Diameter: 18cm/ 7.1 inch, Outlet Diameter: 10cm/ 3.94inch 80cm: Length: Approx. 80cm/ 31.50inch, Inlet Diameter: 23cm/ 9.406inch, Outlet Diameter: 12cm/ 4.72inch 100cm: Length: Approx. 100cm/ 39.37inch, Inlet Diameter: 34cm/ 13.39inch, Outlet Diameter: 17cm/6.69inch Package Includes: 1 * Windsock Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Brand new and high quality. Convenient to use. Durable and practical. Made of high quality material, durable and practical to use. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. Please allow slight manual measurement deviation for the data.