I've been having a hard time finding ankle cuffs that one can attach weighted plates to for hanging ab workouts like the HLL/RLL on Amazon (let alone anywhere); all I can find are cuffs that people attach to cable machines, which I assume wouldn't work for plates.
Here's a video of a guy demonstrating what I'm talking about:
Does anyone have any recommendations of a product they use, or perhaps even a homemade solution? I'd appreciate the help.