ature: 1.Designed with sturdy lock knob that locks the neck of the mount and can be adjusted to any 360 degree angle. 2.Easy to install, just attach the two extendable grip arm clips to center rear-view mirror, cradle arms expand up to a total of 3.5 inches wide 3.Soft rubber padded cradle arms for device grip protection, wont scratch or damage device. Expendable mirror clips also padded for grip protection, non-slip, and sturdy. Keeps device in place while driving. 4.Slim, lightweight, and compact, mount conveniently hangs from rearview mirror keeping dashboard, windshield, and cup holder slot cleared. No clutter. Specification: -Name: Car Rearview Mirror Phone Holder -material: plastic+ABS