These are suitable for Underwater/Marine use?

These extension arms can be used under sea water. First of all, this product is underwater shooting supplies. Secondly, this ball extension arm is made of aluminum alloy, which has excellent corrosion resistance.

Will the small balls at the ends slip?

Having never have slip while using them as long as you remembered to tighten the clamp. The friction from the silicone ring and the clamps, which can be adjusted to obtain by adjusting the clamp locking.

An extension arm has two length sizes, how should I choose?

From this end of the ball to the other end of the ball is the overall length of the extension arm, but according to the actual size of the product that can be used, it should start from the red silicone O-ring.

MINIFOCUS 4" Double Ball Aluminum Extension Arm, 1" Ball Head Connector Underwater CNC Arm System Ball Head Extension for Strobe/Video Light/Diving Camera Tray, Waterproof and Rustproof (2pack)

Product ID: 422502486

Details

Color
2PCS 4'' Ball
Brand
MINIFOCUS
Item Weight
4.1 Ounces

🌊Waterproof

🔗Universal Fit

⚙️4" Length

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¥9557

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

Dive into Creativity! 🌊

ENHANCED STABILITY - Equipped with silicone O-ring friction gaskets for a secure and stable connection.
LIGHTWEIGHT DESIGN - Crafted from anodized CNC aluminum, this arm is both durable and easy to handle underwater.
CORROSION RESISTANT - Built to withstand the harshest underwater conditions without rusting or degrading.
FREE ANGLE ADJUSTMENT - Easily adjust the angle of your strobe or video light for optimal lighting in every shot.
VERSATILE CONNECTIVITY - Compatible with all 1" ball head systems, making it the perfect addition to your underwater gear.

The MINIFOCUS 4" Double Ball Aluminum Extension Arm is a robust and lightweight solution for underwater photography, featuring a corrosion-resistant design and universal compatibility with 1" ball head systems. This 2-pack includes free replacement O-rings, ensuring a stable connection for your strobe or video light, allowing for optimal angle adjustments to capture stunning underwater shots.

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