The strong metal gives this probe a tough look, making it easy to insert into the urethra. This probe, featuring three beautiful balls that provide even more sensations, will soon become your favorite. Sounding is exciting because it is largely unknown, different, risky, and non-traditional. The urethra runs along particularly sensitive areas in the glans and G-spot. Sounding directly stimulates these nerves, offering a great sexual thrill for the brave among us. Please note: inspect, wash, disinfect, sterilize. Play safe!.