Technical Pro Web Camera Suspension Crane Arm with Base & Desk Clamp. New. Ideal for small studios, broadcasting, and video recording, the TPARM1 from Technical Pro is constructed of steel and has an extended length of 20.9" with an articulating joint or "elbow" that's spring-loaded to allow folding and swiveling action. The arm has 1/4"-20 male threads on its adjustable top base for cameras with matching female threads and weighing up to 3 lb. Furthermore, the arm is counterweighted and securely stabilized by its steel 3.3 lb base. Compatibility Suitable for Logitech Webcam C922 C930e C930 C920 C615 with standard 1/4-inch screw hole. Perfect for any stores, families, stages, studios, broadcasting and Video recording, etc. Spring loaded Suspension Arm Can support Web Camera with 1/4" Threading Desk Mount Base Desk or Shelf Clamp Included