Big John has a diameter of 6.5 cm and is perfect for a very intense anal stimulation. The smooth metal narrows, so that the butt plug can be easily inserted. Thanks to the fact that the separation of the plus and minus poles is located only a few centimeters from the tip, the soft tingling, rhythmic pulsating or sensuous pushing sensations can be felt very soon after insertion. The stimulation can be enjoyed for hours or quickly lead to new and unexpected orgasms. Big John is made of medical 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, Cluster Buster or the Mystim Pure Vibes.Weight: approx. 570 gLength: approx. 13 cmDiameter: approx. 6.5 cmMaterial: hand polished medical grade aluminum