Adjustable from 400 to 600 mm in 8 steps, With recessed lever change, Push-button release, Return angle 7.5 degrees, Non-slip 2-component handle, Locks in the middle position: When the lever is flipped, it automatically engages for clockwise or anti-clockwise operation, For hand-operated sockets and accessories with square drive as per DIN 3120 - C 12.5