Cant find the right sized clamps

I bought some Cable cuffs, but the small ones are too small and the big ones aren’t tight enough. I could possibly try clamping by using the big one and doing it behind my balls, but would that be effective?

Btw, I went to Home Depot in NYC Manhattan, if anyone else knows where I could find some more, by all means.

The medium cable cuff is about 1” by 1.625” when fully closed (on the inside). I then have to use sufficient wrap to make it tight enough,

*smacks himself*

I forgot the wrap.

This is a dangerous practice. The blood supply to your testicles enters the scrotum right next the the base of your penis. Any clamp that encircles the scrotum can cause serious circulation problems. Yes, some guys use straps and cock rings there, but those things do not constrict as much as a clamp. Be careful.