balls, Balls, BALLS.
What to do if you have three of them?
You get one of my underwater triple clamps and sort that rig out.
Crafted from Hard Black Anodized Aluminum, and a perfect touch of Stainless Steel - any more they'll corrode, any less and your balls aren't where they're meant to be...
Fits all standard 1" balls found on the end of underwater camera tray handles, control arms and lights.