A violin bow is a crucial tool used to play the violin, an instrument known for its expressive sound. Typically made from wood, the bow consists of a stick, a frog (the part you hold), and horsehair stretched between the ends. The horsehair is treated with rosin to create friction against the strings, allowing the player to produce sound. The design and materials of a violin bow can significantly affect its performance. Bows can vary in weight, balance, and flexibility, influencing how a musician plays. Professional players often invest in high-quality bows, which can be crafted from fine woods like Brazilian pernambuco or carbon fiber.