This long and flexible urethral sound is excellent for the special stimulation of the penis. With a bit of practice, its 6 mm diameter can be easily inserted into the urethra, providing a sensation like you've never felt before. When Slim Finn is lubricated, it becomes quite thick for you. With its slim and lightweight body, the urethral dilator brings the entire range of electrostimulation to excitingly unfamiliar places. Its gently rounded tips and the seamlessly smooth transition between the poles not only give it an elegant appearance but also make insertion into the urethra easy with a little practice (and lubricant). Once Slim Finn is in place, it combines the bittersweet stretching from within with the endless teasing of impulses into a unique symphony. Just a few centimeters in, this compact Mystim E-Stim dilator isolates the two poles. To activate the poles, you need a stimulation device like the Cluster Buster, the Mystim Tension Lover, or the Mystim Pure Vibes. Then the electric stimulation begins. Even during stretching, the stimulation tickles, tingles, or pulses significantly. The experience in the tube becomes even more intense if you warm Slim Finn on the heater or cool it in the refrigerator before use. If you wish, the tingling, pleasurable sensation can last for hours. You can vary and intensify the stimulation to quickly reach sensational peaks or adjust it so that you can save yourself just seconds before climaxing. It all depends on your preferences – and your stimulation settings. For cleaning, simply use water and a mild detergent, along with a skin-friendly disinfectant at regular intervals. After it has completely dried, it is ready for the next big use.