Vertical blinds are window coverings made of vertical slats that hang down from a track. Typically made of fabric, vinyl, or other materials, these slats can be rotated to control light and privacy. The blinds are operated by a mechanism that allows them to be drawn to one side or split in the middle for easy access to the window. Vertical blinds are a popular choice for large windows and sliding glass doors due to their practicality and versatility in light control.