9-inch Double Ball Aluminum Extension Arm Set, 1-inch Ball with Three-Hole Butterfly Clamp, Saltwater-Grade Corrosion and Rust Resistant, for Underwater Strobes/Video Lights/Camera Rigs

About this item

• Marine-Grade Rust & Corrosion Resistance:The entire extension arms and ball heads are made of high-strength anodized aluminum alloy, specially treated for corrosion resistance to withstand long-term seawater immersion. The double-ball arm structure stays stable underwater without rust or fading, designed for deep-sea and saltwater environments
• Anti-Slip O-Ring + Spare Ring:Each 1-inch ball head features a silicone O-ring friction seal that provides uniform damping and prevents displacement caused by water current. A spare O-ring is included, ensuring a tight and reliable connection even after long-term use, eliminating any risk of loosening
• 9-Inch Free Adjustment Without Dead Angles:The 9-inch arm length is just right, with both ends supporting 360° rotation and multi-angle tilt. Easily connect underwater strobes, video lights, or action cameras to achieve creative lighting such as side light, top light, and backlight, significantly improving the quality of underwater photos and videos
• Lightweight & Anti-Slip – No Loosening Underwater:Each arm weighs only 136g, and the complete set (2 arms + 2 clamps) is about 370g, adding no significant burden during dives. The arm surface is anti-slip treated, allowing easy grip and adjustment even with wet diving gloves, and the connection remains stable without loosening
• 2 Arms + 2 Clamps – Ready to Use Out of the Box:Includes 2 pieces of 9-inch double-ball arms and 2 pieces of three-hole butterfly clamps. The clamps support multi-directional fixing and serial extension, making it easy to build a dual-light system or an extended arm structure. No additional connectors are needed – cost-effective and practical.