Are you a musician looking for a quality end pin to enhance the sound of your upright bass? Look no further than Yinfente upright double bass end pin! This end pin is designed for string bass, which is strong and light. It is made of high-quality carbon fiber, which makes it durable and long-lasting. This upright bass end pin is designed to improve the resonance of your instrument, giving you a richer, fuller sound. The installation is simple, and it is designed to fit most upright basses on the market. With Yinfente upright double bass end pin, you'll be able to enjoy a more focused and accurate tone, and bring your music to life. Don't settle for less - upgrade your instrument with Yinfente upright double bass end pin today!