Introducing the 'Magnusson 2 Piece ¼" Socket Extension Bar Set'. This duo, including 4" and 6" extension bars, is expertly crafted using premium chrome vanadium steel, giving these tools not only durability but also a gleaming micro-chrome finish. Boasting a lifetime guarantee, this set is sure to stand the test of time and become a lifelong companion in all your mechanical endeavors. The set incorporates two extension bar lengths, 100mm and 150mm respectively, providing versatility for a wide range of applications. This convenient Magnusson extension bar set is not just a tool; it's an investment in reliability and efficiency.