These are a fun addition to your accessories collection. Made of dense plastic, they are very light and close with a velcro strap for a good fit. Plug in any 2mm pin to the front or the back, each shoe is a unipolar accessory. Therapeutically, the electrode conductors are at accupressure points. These points also enhance sexual pressure at low voltage. At higher voltage, well, use your imagination for predicament play and other pleasant pastimes.
Sold per pair. Length is 10.5 inches, width 3.5 inches at the widest point. This is a medium size but the electrode placements are further apart, more suited to male feet than female. (Ladies please see foam version).