This device has saved my marrige. Now that my wife is the keyholder she knows I'm faithful, because once this is on and it's fitted correctly you're not getting out. Use high quality silicone lubricant as recommended for more comfort. Also. use a drop or @ in the lock to keep it from rusting in the shower. Since I started useing the CB-6000 my wife has let me out once, and I was more than ready to take care of all her needs, especially since she made me watch her use her vibrator before she unlocked me.