This unique vaginal and anal bi-polar ElectraProbe has a completely hollow centre which intensifies stimulation by ensuring all the stimulation current flows through the sensitive nerve tissues. Its shape keeps it in place and it is very discreet allowing you to have the ultimate sensation whenever and wherever you feel the need! Has 80mm insertable length and is 30mm in diameter. For use with the ElectraStim pack or ElectraProbe pack.