Feature:1. Aluminum Alloy Material: This super clamp is made of aluminum alloy material for high durability. Non slip rubbers on the inner side provide strength and stability.2. Screw Mount: With 1 or 4 inch and 3 or 8 inch screw holes, both the standard fitting sizes in the photo industry for ball heads and tripods can be used for a variety of attachments.3. Wide Applications: If equipped with articulating arm, super clamp camera mount can connect a monitor, LED video light, flash, etc.4. Scope of Application: The maximum fixed range is about 40mm or 1.6in, the recommended range is less than 40mm or 1.6in .5. Good Workmanship: Exquisite workmanship, beautiful appearance design, small and portable size, providing you great using experience.Specification:Item Type: Super ClampProduct Material: Aluminum AlloyColor: As Pictures ShownWeight: Approx. 67g or 2.4ozMaximum Fixed Size: Approx. 40mm or 1.6inScrew Mount: 1 or 4 Inch, 3 or 8 Inch Each.Package List:1 x Fixing Clip