If someone puts your balls in here, you're screwed! [Just kidding]
But this item can be pretty devastating to testicles. Just look at the illustration, you can see all the extremely frightened spermies trying to escape being crushed.
It works by a simple handle turn, bearing down closer and tighter against your straining balls. Could make for a very sexy game with someone you trust!
While I wouldn't recommend having your balls crushed in this device all day, you can nonetheless wear it all day if you're feeling adventurous or possibly if you're worried you might have children one day, this will take care of that ;)
Experience ball crushing at home, without the need for anyone else!
This also acts slightly as a ball stretcher as it weighs 800g of pure stainless steel.
Measurements: Length 110mm, Diameter: 72mm, Hole diameter: 25mm approx