This looks to be a net that will be used for volleyball. It could also possibly be used for badminton. There are two poles on each side and a big net going across going from the top but not all the way to the ground.
This is the Sport Net icon for Windows 10
. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.