With a diameter of 10 mm, Proper Finn is two millimeters thicker than his cousin Thin Finn and so stimulates the penis even more intensely. His elegant design with a softly rounded tip and smooth transition between the poles render the insertion into the urethra a matter of little practice.Proper Finn is made of aluminum and polished neatly by hand. For extra kicks, it can be warmed on the heater or cooled in the refrigerator: it is designed to retain the temperature for an extended period of time. To activate the poles an e-stim device is required - like the Mystim Tension Lover, or the Mystim Pure VibesJunction: Mystim round plugPoles: 2(bipolar)Length: approx. 20 cmDiameter: approx. 10 mmMaterial: handpolished aluminum