Casualfashion 31.50" Durable Rip-stop Fluorescent Windsock with Reflective Belt Suitable for:Meteorology, Chemical Industry, Environmental Protection, Agriculture, Oil Exploration and Other Industries. Length: (80cm/ 31.50" ); Air inlet diameter: (20cm/7.87" ) Color:Orange Reflective Fluorescence Belts Model windsock, easy to fly, elegant figure, bright color with reflective fluorescence belts It is easy to install and widely used in meteorology, chemical industry, environmental protection, agriculture, oil exploration and other industries