HARDENED AND TEMPERED CHROME VANADIUM STEEL - For strength and durability, with fully polished mirror finish. 72-TOOTH RATCHET - With flip reverse and push-button quick release. FOUR SHAFT LENGTHS - Handle extension set at four increments from 330-430mm for increased access in space restricted applications. QUICK RELEASE LOCKING RING - For fast length adjustments. 90° FLEXI-HEAD - Built-in pivot to allow increased flexibility. SOFT GRIP HANDLE - For comfort and control.