ElectraStim Jack Socket Replacement SleeveTime to refresh your ElectraStim Jack Socket? ElectraStim Jack Socket replacement sleeves now come in two sizes: Standard or XL. The subtly wider canal in the XL sleeve allows for a more comfortable experience for men with a thicker penis. Both sleeves are the same as the ones youll find in the complete kit and no matter what size kit you bought, both sleeves fit inside the black silicone outer casing so you can try both without having to buy the