• · [ Underwater ] Ball diameter is approx 2.5cm, the O-ring is made of EPDM rubber.
• · [ Durable ] This Single ball arm is made of aluminum alloy by CNC machine, lightweight and durable.
• · [ Connector ] Use in diving lighting system to connect flashing light, torch or other lighting system accessories.
• · [ Universal ] The size is universal and suitable for most of brands diving equipment products.
• · [ Convenient ] Convenient operation, easy to assemble and disassemble.