Winds instruments are a category of musical instruments that produce sound through the vibration of air. They are typically made from materials like wood, metal, or plastic and include instruments such as flutes, clarinets, saxophones, and trumpets. Players create sound by blowing air into or across the instrument, which then resonates to produce music. These instruments can be classified into two main types: woodwinds and brass. Woodwinds, like the oboe and bassoon, use reeds or are played by blowing air across an opening. Brass instruments, such as the trombone and French horn, produce sound through the vibration of the player's lips in a mouthpiece.