This is the ideal urethral plug starter kit. Each urethral sound has everything a beginner needs: hollow and flexible core, super-smooth medical-grade silicone, a user friendly insertion length and a large flange for easy grip. This kit comes with two urethral sounds. Both are hollow and allow for piss or cum to pass though. One is thicker than the other, allowing for a progression. Or use one on yourself and one on a friend at the same time. Harness that powerful load and feel the unexplainable pleasure from internal stimulation when you finally shoot. Be sure to only use these great toys with sterile lube.