Its main frame is constructed from durable machined aluminum and its industrial design both works and looks great. The mount is lined with a soft, no-slip material and is compatible with nearly all styles of modern smartphones. It features a unique dual-rod design that slides open or closed via a twist knob for secure and precise phone mounting. Excellent for hardcore commuters and all other cyclists, the Smart Vise Mount is a terrific option for on-the-bike smartphone accessibility.