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 fact