---
product_id: 702048633
title: "8\" 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)"
brand: "minifocus"
price: "€ 115.83"
currency: EUR
in_stock: true
url: https://www.desertcart.fr/products/702048633-8-double-ball-aluminum-extension-arm-1-ball-head-connector
store_origin: FR
region: France
---

# Waterproof & rustproof anodized aluminum 1" ball head connector, universal fit 8" length for versatile reach 8" 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)

**Brand:** minifocus
**Price:** € 115.83
**Availability:** ✅ In Stock

## Summary

> 🌟 Elevate your underwater shots with precision and style!

## Quick Answers

- **What is this?** 8" 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) by minifocus
- **How much does it cost?** € 115.83 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/702048633-8-double-ball-aluminum-extension-arm-1-ball-head-connector)

## Best For

- minifocus enthusiasts

## Why This Product

- Trusted minifocus brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Optimized 8" Double Ball Arm:** Provides flexible, stable positioning for strobes and video lights to capture perfect shots every time.
- • **Precision CNC Aluminum Alloy:** Corrosion-resistant, lightweight, and built to last in harsh underwater environments.
- • **Waterproof & Rustproof Design:** Engineered to withstand saltwater and freshwater conditions without compromising performance.
- • **Universal 1" Ball Head Connector:** Seamlessly integrates with all 25mm ball head systems for effortless gear customization.
- • **Bonus Replacement O-Rings Included:** Ensures long-term reliability and friction-free connections for uninterrupted underwater shooting.

## Overview

The MINIFOCUS 8" Double Ball Aluminum Extension Arm is a lightweight, corrosion-resistant underwater accessory crafted from anodized CNC aluminum alloy. Featuring a universal 1" ball head connector and a durable double ball arm design, it offers flexible, stable mounting for strobes and video lights. Waterproof and rustproof, this 2-pack includes replacement O-rings to ensure reliable, friction-free connections, making it an essential tool for professional underwater photographers seeking flawless lighting control.

## Description

MINIFOCUS 8" 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)

## Features

- 【Specification】Length: 8" /20.3cm. Ball size: 1"/25mm. Weight: 5.57oz/158g. 2* 8" double 1" ball extension arm; 2* free replacement O-rings.
- 【High Quality Material】Made by corrosion resistant anodized CNC aluminum alloy, anti-corrosion. The hollow design makes it lighter and reduces resistance when used underwater.
- 【Ball Head with Protection Ring】1" ball head made by corrosion resistant anodized aluminum alloy with rubber O-ring friction gaskets, avoid friction during connection and make the connection more stable.
- 【Free Extension】8" double 1 inch ball arm supports to connect strobe or video light, freely adjust the angle to get the best lights angles to take the best photo you want.
- 【Connector】Double ball adapter connect your underwater strobe or video light via the light holder. The size is universal and compatible for all arm systems that has a ball head which diameter is 25mm/1 inch.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Package Dimensions L x W x H | 24.3 x 6.3 x 3.1 centimetres |
| Package Weight | 0.19 Kilograms |
| Product Dimensions L x W x H | 25 x 25 x 229 millimetres |
| Item Weight | 191 g |
| Brand | MINIFOCUS |
| Colour | 2 x 20.3 Double Ball Extension Arm |
| Included components | 8'' Ball Arm with 2 1” ball head |
| Part number | MF08 |
| Size | 8" Extension Arm |
| Water Resistance Level | Waterproof |
| Guaranteed software updates until | unknown |

## Product Details

- **Colour:** 2 x 20.3 Double Ball Extension Arm
- **Brand:** MINIFOCUS
- **Compatible devices:** Compatible for all arm systems that has a ball head which diameter is 25mm/1 inch
- **Product dimensions:** 25D x 25W x 229H millimetres
- **Item weight:** 191 g
- **Folded size:** 4.5 inches (l) x 1 inch (w) x 1 inch (h)
- **UPC:** 824382490484

## Images

![8" 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) - Image 1](https://m.media-amazon.com/images/I/61i05RanehL.jpg)

## Available Options

This product comes in different **Size Name** options.

## Questions & Answers

**Q: These are suitable for Underwater/Marine use?**
A: 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.

**Q: Will the small balls at the ends slip?**
A: 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.

**Q: An extension arm has two length sizes, how should I choose?**
A: 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.

## Frequently Bought Together

- MINIFOCUS 8" 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)
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- 4Pcs Underwater Camera Buoyancy Float Kits, Buoyancy Provided 175g*4, Diameter 3.15", Thickness 1.5", Aquatic Arm Float Kit for Seafrogs/nitescuba/Starbea Floating Arms Diving Tray

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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-01-29*