The KESTER part 83-1000-0951 is a high-quality Liquid Rosin Activated Pen with a 2% concentration, specially designed for automotive applications. This convenient and easy-to-use pen is perfect for accurately applying liquid rosin flux for soldering tasks in automotive repair and maintenance. Ensure precise and reliable soldering connections with the KESTER 83-1000-0951 Liquid Rosin Activated Pen.