Penis plugs and urethral sounds are popular tools for sexual experimentation, arousal and pleasure. Many men use them to enrich their sexual experience and reach new levels of sexual pleasure. These toys can be used for masturbation, sex, role-playing, medical games, and in many other ways – the only limit is your imagination. To know how to use them properly, however, you need to understand what they do and what is the best way to start using them.