MINIFOCUS 8" Double Aluminum Extension Arm, 1" Ball Head Connector Underwater CNC Arm System for Strobe/Video Light/Diving Camera Tray, Waterproof and Rustproof (2pack)

【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.