Feature:1. Multifunctional Design: Multifunctional super ball head clamp can be adjusted and rotated pod any angle, universal 1 or 4 inch screw interface. 2. Scope of application: crab claw with ball head can be clamped up to 3,8 cm, and the recommended clamp range is 13 mm-30 mm 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 various devices. 4. 5. Fix Frmly: with horizontal straps to increase friction and fix tighter. Outstanding build quality and beautiful appearance. . Camera Super Clamp Ball Head Crab Claw Clip Specification: Item type: Super ball head clamp Product Material: Aluminum Alloy Color: as shown in the pictures Weight: approx. 149 g or 5,3 oz Crab claws can tighten the maximum range: approx. 3,8 cm or 1,5 inch Recommended Clamp Usage Range: Diameter Approx. mm - mm or 0.5-1.2in . Camera Super Clamp Ball Head Crab Claw Clip Package List:1 x Clamp 1 x Articulated Arm . Camera Super Clamp Ball Head Crab Claw Clip