I originally bought this for my Samsung Epic a few months back. What I didn't realize was there was more than one Samsung Epic (which also shares parts with the Galaxy S2). I had the slider keyboard version..thus I ordered the wrong one. This also works with Samsung Galaxy S2, as shown here. First photo is comparison of extended battery/cover VS. stock battery/cover, inside the phone, and cover installed on my mom's GS2 for the pictures. This item is brand new in box and was only opened for photos. I have no use for it. I paid $20 plus three shipping on this originally from Amazon , I'd like $10+ship (Figure two or three bucks in a bubble mailer) or I can meet up if you're local.