Cotytech Adjustable Telephone Arm - Grey Mounts on desk, clamp or grommet. 360 rotation; Tilt: 5- 28 ; Maximum extension: 5.40" (138mm) Smooth tilt adjustment; Smooth extension to achieve ideal angle Width adjustment from 5.1" to 8.1" to fit various kinds of phones. Grey frame color; Materials: ABS; Very easy to use