The strong metal gives this probe a robust look and allows for easy insertion into the urethra. This probe, featuring three beautiful balls that provide you with additional sensations, will quickly become your favorite. Sounding is exciting as 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 and offers a great sexual thrill for the bold among us. Please note: inspect, wash, disinfect, and sterilize. Play safely!.