Vibration on a glans penis and on the foreskin ligament is very stimulating and stimulating. A small cock becomes stiff and hard and squirts its sperm out of the scrotum. All you need is an old electric razor which is freed from foil and cutter. Then you take a wire and wrap it around the holder from the cutter. A loop is made at the other end - through which the glans is stuck. Switch on the device and see what happens. I always find it very GEIL.