Designed for external stimulation below the waist, this pack of 4 Electrapads are longer and thinner than the original square version. Measuring 0.6 inches wide and 3 inches long, these self-adhesive pads are ideal for delivering more intense charged tingles to the penis, labia or perineum. Connect two of the uni-polar pads to a single channel on your ElectraStim power pack and experience targeted tingles and contractions that are unlike any other sex toy. Please note that this product will not work unless you own an ElectraStim power pack, like the EM60-E or the EM80-E.