--- product_id: 267744949 title: "MINIFOCUS 8\" Double 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: "278.21 DT" currency: TND in_stock: true url: https://www.desertcart.tn/products/267744949-minifocus-8-double-aluminum-extension-arm-1-ball-head-connector store_origin: TN region: Tunisia --- # Waterproof & rustproof design 8-inch precision length CNC-machined aluminum alloy MINIFOCUS 8" Double 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:** 278.21 DT **Availability:** ✅ In Stock ## Summary > 💡 Illuminate your dive with precision and style! ## Quick Answers - **What is this?** MINIFOCUS 8" Double 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?** 278.21 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/267744949-minifocus-8-double-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 - • **Universal Compatibility:** Seamlessly integrates with all 1" ball head underwater lighting and camera systems. - • **Lightweight Hollow Design:** Optimized for minimal drag and effortless maneuvering underwater. - • **Precision 8" Double Extension:** Maximize your underwater rig reach with a perfectly engineered 20.3 cm arm. - • **Stable 1" Ball Head Connector:** Silicone O-ring friction gaskets deliver rock-solid, wobble-free attachments. - • **Corrosion-Resistant CNC Aluminum:** Durable anodized alloy ensures long-lasting, rust-free performance in saltwater. ## Overview The MINIFOCUS 8" Double Aluminum Extension Arm is a lightweight, corrosion-resistant underwater accessory crafted from anodized CNC aluminum alloy. Featuring dual 1" ball heads with silicone O-ring gaskets, it offers stable, adjustable mounting for strobes, video lights, or camera trays. Designed for universal compatibility and enhanced underwater performance, this 2-pack ensures your lighting setup is both flexible and reliable in any diving environment. ## Description Full description not available ## Features - Specification: Length: 8 inch/20.3 cm; Ball size: 1 inch/25 mm; Weight: 5.57 oz/158 g; 2x 8" 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: 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 25 mm/1 inch ## Product Details - **Color:** 2PCS 8'' Double Ball Extension Arm - **Brand:** MINIFOCUS - **Compatible Devices:** Compatible for all arm systems that has a ball head which diameter is 25 mm/1 inch - **Product Dimensions:** 1"D x 1"W x 9"H - **Item Weight:** 6.72 ounces - **Folded Size:** 4.5 inches (l) x 1 inch (w) x 1 inch (h) - **UPC:** 824382490484 ## Images ![MINIFOCUS 8" Double 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** 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) - 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/267744949-minifocus-8-double-aluminum-extension-arm-1-ball-head-connector](https://www.desertcart.tn/products/267744949-minifocus-8-double-aluminum-extension-arm-1-ball-head-connector) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-12*