Ouch! Urethral Sounding Ribbed Stainless Steel Dilator 7.7 mmThe strong metal gives this sounding a tough look and makes it easy to insert into the urethra. Pull out or leave in this one is for keeps. Long and ridged will never mean the same. Sounding is exciting because it's fairly unknown different risky and non traditional. The urethra passes by particularly sensitive areas in the penis head and the P spot. Sounding stimulates these nerves directly offering a great sexual impulse for those who dare.