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 Sport Net icon is made in Material Design style
developed by Google. This style is based on extremely simplified shapes, thin two-pixel lines, and is optimized for 24x24 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 6,100 icons, all in the same style and quality.