1'' Ball Adapter with 1/4"-20 Screw, 2 PCS MINIFOCUS 1inch Ballhead Adapter for Underwater Camera Arm Tray Diving Photography System

MINIFOCUS 2Pcs 1'' Ball Adapter to 1/4"-20 Screw, Universal Ball Joint Bracket with 1/4" Screw Base Adapter for Underwater Camera Arm Tray Diving Photography System

MINIFOCUS 2PCS 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

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)