Review on ROCKBROS Motorcycle Vibration Cellphone Universal by Ben Olson

Very stable phone holder. Vibration dampening function. What other holders don't do is hold phones with Otter-style cases installed. Screws on the handlebars, no clamp that can come loose. Double ball joint for angle adjustment. The mounts are high instead of low to improve visibility and distance. Has the weight of an expensive design. Arrived well packaged. There are no instructions and they are not needed.