Feature:1. Multifunctional Design: Multifunction ball head super clamp can be adjusted and rotated at any angle, 1 or 4 inch universal screw interface.2. Scope of Application: Ball head crab claw can be clamped at a maximum of 3.8cm, and the recommended range of clamps is 13mm30mm in diameter.3. 1 or 4 Inch and 3 or 8 Inch Screw Interface: Designed with 1 or 4 inch and 3 or 8 inch screw interface, compatible with a variety of devices.4. Wide Range of Applications: Can be used for fixed monitors, cameras, action cameras, fill lights, microphones and other products.5. Fix Frmly: With horizontal stripes to increase friction and fix more firmly. Exquisite workmanship and beautiful appearance design.Specification:Item Type: Ball Head Super ClampProduct Material: Aluminum AlloyColor: As Pictures ShownWeight: Approx. 149g or 5.3ozCrab Claws Can Clamp The Maximum Range: Approx. 3.8cm or 1.5inRecommended Clamp Use Range: Diameter Approx. 13mm-30mm or 0.5-1.2in.Package List:1 x Clamp1 x Articulating Arm