A guitar pick, also known as a plectrum, is a small, flat tool used to strum or pluck the strings of a guitar. Typically made from materials like plastic, metal, or wood, guitar picks come in various shapes, sizes, and thicknesses. The choice of pick can affect the sound and playability, making it an important accessory for musicians. Guitar picks are held between the thumb and index finger, allowing for precise control over the strings. They can enhance the tone produced by the guitar and are often used in different playing styles, such as strumming chords or playing intricate solos.