. 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 Newest style, easy to fly, with elegant character pattern, bright colors and refective stripes To let you get the experiences of detecting wind direction with orange reflective tapes. Specification: Material: Waterproof oxford cloth Color: Orange 60cm: Length: Approx. 60cm/ 23.62inch, Inlet Diameter: Approx. 20cm/ 7.87inch, Outlet Dia. : Approx. 10cm/ 3.94inch 80cm: Length: Approx. 80cm/ 31.50inch, Inlet Diameter: Approx. 24cm/ 9.45inch, Outlet Dia. : Approx. 12cm/ 4.72inch 100cm: Length: Approx. 100cm/ 39.37inch, Inlet Diameter: Approx. 32cm/ 12.60inch, Outlet Dia. : Approx. 15cm/ 5.91inch 150cm: Length: Approx. 150cm/ 59.06inch, Inlet Diameter: Approx. 45cm/ 17.72inch, Outlet Dia. : Approx. 22.5cm/ 8.86inch Package Includes: 1 Piece Windsock Note: The color may have different as the difference display, pls understand. Please allow 1-3mm error due to hand test.