I'm selling these because I don't need reading glasses anymore. I don't know the prescription, but I took pictures of what was written on the glasses, starting from the front left and going to the back, then from the front right to the back, even if the prescription wasn't written. I think they're around 2.0 to 2.5. You often see these at reception desks and other places. How about them as spares? There's one that I'm a little unsure about (the front right one). No returns, please.