Tooluxe 00226L 3/8" Socket Drive Ratcher Extensions Bar Set, 4 Pieces (3", 5", 6", 10") Multi-size range of extension bar grants access to fasteners in hard to reach areas in tight, narrow spaces as well as providing power for high torque operation Drop forged, heat treated carbon steel construction withstands heavy duty operation providing high durability and extra strength Stainless steel mirror-chrome plating finish is corrosion resistance and prevents rust to maximize tool life Four sizes come in 12, 15, and 18-inch extensions to work with a wide range of applications in cars or garages Spring loaded ball at the end of bar locks socket into place for security and prevents dropping