Feature: 1. Multifunctional Design: Multifunction ball head super clamp can be adjusted and rotated at any angle, 1/4 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 13mm‑30mm in diameter. 3. 1/4 Inch and 3/8 Inch Screw Interface: Designed with 1/4 inch and 3/8 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 Clamp Product Material: Aluminum Alloy Color: As Pictures Shown Weight: Approx. 149g / 5.3oz Crab Claws Can Clamp The Maximum Range: Approx. 3.8cm / 1.5in Recommended Clamp Use Range: Diameter Approx. 13mm-30mm / 0.5-1.2in. Package List: 1 x Clamp1 x Articulating Arm