7/16"-20 S.A.E. Stainless Steel Threaded Rod Coupling

Seafrogs Carbon Fiber Underwater Float Arm, Dual Ball Lightweight Buoyancy Arm for Diving Tray, Video Light, and Strobe - Compatible with Underwater Photography Accessories (10inch D80mm BIACK)

Yornimir Carbon Fiber Underwater Float Arm, 1-inch Dual Ball Buoyancy Arm for Underwater Camera Tray, Video Light & Strobe for Scuba Diving Photography & Videography (Blue, 10 inches)

1'' Standard Ball Clamp Mount,360°Clip Adapter Bracket for Underwater Diving Light Arm Tray System Photography Diving Camera Action Camera Flashlight Arms System (SC02-B)

Sea frogs Diving YS Flex Joint Arm System Compatible with Waterproof Camera Housing Accessory for Underwater Photography (8")

Butterfly Clip Mount with Dual Ball Heads - CNC Aluminum Alloy Spring-Loaded Open Clamp for Insta360/Gopr0 Cameras, LED Lights, Microphones (Ball Joint Compatibility, Underwater Photography) 63151A

OrcaTorch ZJ15 Double Ball Joint Arm Aluminum Alloy Ball Head Extension Arm Dive Accessories Underwater Lighting System Connector for Underwater Strobe/Video Light/Diving Camera Tray (80mm)

Sea frogs Aluminum Alloy Clamp Ball Joint Bracket Arm Two Section Holder Diving Essential Accessory Light Combination Fixed Clamp CP-2

Sea frogs Wide Angle Lens 78mm(L) x 90mm (W) for Underwater Waterproof Camera housing case WA005-F