C920s Webcam Stand: Avoid shooting shaking, and the screen blurred, suitable for shooting documents, books and other small subjects. Online Lesson Mount: Cast iron base and aluminum alloy pull rod, foldable and vertical adjustable, lightweight, stable and durable. Max weight capacity about 350g(0.7lb), equipped with 1/4'' screw to compatible with miniature cameras under 350g or smartphone (including phone clamp).