This metal penis cage from the Sinner Gear collection surrounds the penis and fills you up. The toy makes sure your penis has nowhere to go and you can't get it up when you get an erection. The metal is strong and can adapt to any temperature. If you want to warm up the cage, hold in under a running tap for a few moments. If you're more of a fan of cold sensations, hold it under the tap or put it in a bowl of cold water.
The penis cage has a lock, so the partner can decide when it is time to take it off.