Be sure to add me to your favorites list Universal AC Adapter Adaptaplug Plug, Size J, OD 5.0 mm ID 1.5 mm, Red Color Tip. This is a universal adapter plug, size J, for Radio Shack, Enercell and other brand universal adapters that accept these 2 pronged types of plugs. This one is size J, with an inner diameter of 1.5mm and an outer diameter of 5.0mm. This can be used with any unit that takes this size plug, and the plug can be reversed on your universal adapter so that it can have a positive (+) or negative (-) polarity. I have several of these left, and they are in very good used condition. The body of the adaptaplug will be black or white in color (the one in the photo is white, but I have both colors), with the two-prong attachment that goes to your Universal power adapter that takes such plugs, and the color of very tip of these plugs is RED. NO UNIVERSAL AC ADAPTER POWER ADAPTER INCLUDED, this is just for an adaptaplug type tip as pictured. Thanks for looking! Check out my Store!