---
product_id: 411778706
title: "MINIFOCUS Double 1” Ball Arm 4'' Scalable Aluminum Alloy Underwater CNC Arm System Connector Ball Head Extension for Strobe/Video Light/Diving Camera Tray, Waterproof and Rustproof"
brand: "minifocus"
price: "₨1633"
currency: SCR
in_stock: true
url: https://www.desertcart.sc/products/411778706-minifocus-double-1-ball-arm-4-scalable-aluminum-alloy-underwater
store_origin: SC
region: Seychelles
---

# 4" Length 1" Ball Size 5 oz Weight MINIFOCUS Double 1” Ball Arm 4'' Scalable Aluminum Alloy Underwater CNC Arm System Connector Ball Head Extension for Strobe/Video Light/Diving Camera Tray, Waterproof and Rustproof

**Brand:** minifocus
**Price:** ₨1633
**Availability:** ✅ In Stock

## Summary

> 🌟 Dive into Creativity with Every Click!

## Quick Answers

- **What is this?** MINIFOCUS Double 1” Ball Arm 4'' Scalable Aluminum Alloy Underwater CNC Arm System Connector Ball Head Extension for Strobe/Video Light/Diving Camera Tray, Waterproof and Rustproof by minifocus
- **How much does it cost?** ₨1633 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/411778706-minifocus-double-1-ball-arm-4-scalable-aluminum-alloy-underwater)

## 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

- • **Stability Redefined:** Silicone O-ring gaskets ensure a secure, frictionless connection.
- • **Unmatched Versatility:** Easily connect strobe or video lights for stunning underwater shots.
- • **Corrosion-Proof Design:** Built to withstand the harshest underwater conditions without rust.
- • **Lightweight Innovation:** Crafted from anodized aluminum alloy, reducing resistance and enhancing mobility.
- • **Universal Compatibility:** Fits all standard 1" ball head systems for seamless integration.

## Overview

The MINIFOCUS Double 1” Ball Arm is a robust and lightweight underwater connector designed for strobe and video lights. Made from corrosion-resistant anodized aluminum alloy, this 4'' scalable arm system ensures stability and versatility, making it the perfect companion for diving enthusiasts and professional photographers alike.

## Description

Double 1” Ball Arm, MINIFOCUS 2PCS 4” Aluminum Alloy Underwater CNC Arm System Connector Ball Head Extension for Strobe/Video Light/Diving Camera Tray, Integrated Without Glue, Waterproof & Rustproof

## Features

- Specification: Length: 4" /10.2 cm; Ball size: 1"/25 mm; Weight: 5 oz/141 g. 2x 4" double 1" ball extension arm; 2x 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 silicone O-ring friction gaskets, avoid friction during connection and make the connection more stable
- Free Extension: 4" 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 25 mm/1 inch

## Product Details

- **Colour:** 2 x 10,2 cm Doppelkugel-Verlängerungsarm
- **Brand:** MINIFOCUS
- **Item weight:** 4.1 Ounces

## Images

![MINIFOCUS Double 1” Ball Arm 4'' Scalable Aluminum Alloy Underwater CNC Arm System Connector Ball Head Extension for Strobe/Video Light/Diving Camera Tray, Waterproof and Rustproof - Image 1](https://m.media-amazon.com/images/I/615qPT7r8OL.jpg)
![MINIFOCUS Double 1” Ball Arm 4'' Scalable Aluminum Alloy Underwater CNC Arm System Connector Ball Head Extension for Strobe/Video Light/Diving Camera Tray, Waterproof and Rustproof - Image 2](https://m.media-amazon.com/images/I/71wqQ5P-GWL.jpg)
![MINIFOCUS Double 1” Ball Arm 4'' Scalable Aluminum Alloy Underwater CNC Arm System Connector Ball Head Extension for Strobe/Video Light/Diving Camera Tray, Waterproof and Rustproof - Image 3](https://m.media-amazon.com/images/I/71UREDhWf1L.jpg)
![MINIFOCUS Double 1” Ball Arm 4'' Scalable Aluminum Alloy Underwater CNC Arm System Connector Ball Head Extension for Strobe/Video Light/Diving Camera Tray, Waterproof and Rustproof - Image 4](https://m.media-amazon.com/images/I/717Qo3k5V2L.jpg)
![MINIFOCUS Double 1” Ball Arm 4'' Scalable Aluminum Alloy Underwater CNC Arm System Connector Ball Head Extension for Strobe/Video Light/Diving Camera Tray, Waterproof and Rustproof - Image 5](https://m.media-amazon.com/images/I/71DYO0TpaIL.jpg)

## Available Options

This product comes in different **Size** 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 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)
- MINIFOCUS 4PCS 1'' Aluminum Ball Clamp Mount for Underwater Diving Light Arms Tray System, Photography Diving Camera, 360° Clip Adapter Bracket for Action Camera Flashlight Arms System
- 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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**Shop now:** [https://www.desertcart.sc/products/411778706-minifocus-double-1-ball-arm-4-scalable-aluminum-alloy-underwater](https://www.desertcart.sc/products/411778706-minifocus-double-1-ball-arm-4-scalable-aluminum-alloy-underwater)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-02-03*