Badminton barriers, also known as NETS, are an essential part of the game. They are used to divide the court into two halves and to determine when a shuttlecock has been hit out of bounds. NETS are usually made of nylon or other synthetic materials and are hung between two posts at the center of the court. They are typically 5 feet high and extend across the entire width of the court. NETS are an important part of badminton, as they help to keep the game fair and competitive.