1. 1in ball can be used to connect dual hole ball clamp mount or other magic arm bracket.
2. It brings convenience for the attachment of additional accessories, such as flash, video lights.
3. 1/4in screws on the bottom fit for the standard for most underwater photography system.
4. Ergonomic handle grip is comfortable for grip and easy to operate.
5. It is made of premium aluminum, lightweight and sturdy, durable to use.

Spec:
Features:
1in ball can be used to connect dual hole ball clamp mount or other magic arm bracket.
It brings convenience for the attachment of additional accessories, such as flash, video lights.
1/4in screws on the bottom fit for the standard for most underwater photography system.
Ergonomic handle grip is comfortable for grip and easy to operate.
It is made of premium aluminum, lightweight and sturdy, durable to use.
Specification:
Condition: 100% Brand New
Material: Aluminum
Color: Black
Screw: 1/4in
Ball Diameter: Approx. 2.5cm / 1.0in
Size: Approx. 28 * 18.5cm / 11.0 * 7.3in
Weight: Approx. 639g
Packing List:
2 * Grips
1 * Connection Tray
1 * Wrenches
5 * Screws
Other devices on pictures are not included.