My Venus2000 trick

[Growinjim]

I find the Giddy device effective for me. It's not a circle, but
sort of horseshoe shaped with extension band at the bottom. But
the trick us it has nubs at the top which restrict venous leak.

Fitting size is Critical.

Expensive but it Works (for me).

I have a larger size for use with Trimix injection and a size
smaller without injection (mostly for exercise of the muscle).

I have no financial or other interest.