Original Patented Mini-Foldtm Folding Reading Glasses with Flip Top Hard Case

These look like the eyemagine folding glasses i bought many years ago. that company seems to have disappeared. great product. is this the same?

My magnification strength is not available here. can i change to another lenses? or frames are fixed and lenses are not changeable?

Are these real glass lenses? Or acrylic ?