Attach a lighting arm to your underwater housing, tray, or grip with this Delta 3 Arm Clamp and 1" Ball with 1/4"-20 Threaded Stud from Aquatica's Technical Lighting Control series. It includes a ball-joint clamp and a standard ball mount with a 1.0" diameter, allowing for connection to optional arm components. The ball's O-ring prevents slipping and enables a better hold with less force when the ball is connected to the ball clamp. At the other end of the mount is a 1/4"-20 screw for connection to a 1/4"-20 female mount on a housing, tray, or grip handle. Built to last, the clamp and ball are made from aluminum that has been hard anodized and treated with Teflon for resistance to corrosion and other wear and tear.

O-Ring Prevents Slipping, Improves Hold    For Housing/Tray/Grip with 1/4"-20 Mount    Enables Lighting Arm Attachment    Made of Hard Anodized Aluminum

Related Questions and Answers

Q: 1. What is the size of the ball head?

A: Unfortunately, the manufacturer does not provide exact dimension details, but if you're measuring the unit from top to bottom, it comes in at approx. 5 inches.

Q: 2. What is the arm made off ??Carbon fiber ??Aluminum ??

A: The arm is made of aluminum.

Q: 3. How much weight does it support?

A: The 12” Dual Mega Ball Clamp Arm with 1/4-20 Accessory Mounting, can support around 3-4 Lbs of equipment. However, the weight capacity varies depending on how the unit is positioned.

Q: 4. What is the diameter of this arm?

A: The arm, Length 8.0" ,Ball Diameter 1.0"

Q: 5. What is the width of this arm?

A: The diameter of the Aquatica 11" Delta 3 Double Ball Buoyancy Arm is 2.970 inches.

Q: 6. What is the length?

A: 2 1/2

Q: 7. Can I use a third party extension if I want it to longer on certain occasions?

A: We are not aware of any third party extensions that would work for this product. If you needed a longer reach, you would need to look in to using a longer arm. Acebil offers the Multiple Function Magic Arm / Two Joint which is 15 inches instead of 12. https://bhpho.to/2Jz1bUN

Q: 8. How stiff is the flexible arm?

A: Very stiff. So stiff that the first thing I did was try to reposition by holding the clamp and the clamp snapped right at the drill hole in the handle. So important to note you can only position by holding the arm by itself. This is a great product but the clamp is the weak point. BTW the clamp just bolts on so I just got a metal one at home depot for 2.99 and switched it out. After boring a hole in seconds handle and breaking that sibe off to.

Q: 9. does this have a 3/8 female thread on the other side? The pictures only display for 1/4 threading. I'd like a stud adapter for my light stands that have 3/8 threads at the top to attach a c-stand knuckle. thanks!

A: There is no threading on the top, only on the bottom.

Q: 10. Is it made of aluminum or steel?

A: The SmallRig Double Ball Head with Cold Shoe & 1/4"-20 Stud is made of an aluminum alloy plus stainless steel.