Swivel Bracket For Underwater Cameras: The Size Of The Movable Arm Vary Depending On The 80/40 Model: The First, Measuring 115X50, The Second 90X50, Both 2Mm Thickness, Stainless Steel Aisi 304 And Anticorodal Aluminum With Hard Anodizing Treatment That Prevents The Alloy Oxidize In Salted Water. The Light Alloy Bracket Weighs 1/3 Of That Steel. The End Where The Camera Is Applied Is Equipped With Holes And Slots That Allow In Any Case An Easy Application Of The Cam. The Central Hole Is Used When Fixing The Cam With The Knob Universal ¼ Inch. The Bracket Is Equipped With A Cleat To Male Dovetail Through Which Is Inserted Into The Sled. Its Grafting Is Safe And Sturdy, And The Cleat, Provided With A Further Secure, It Prevents Accidental Extraction.