[FOR SALE] How much is this worth? (Power Playback Dagger)

I have a HUGEEEEE power ranger collection that I've been holding on to since I was a kid (most never opened) but this is one Ive never really seen sold so i don't know the price range of it, i found a picture on google and this is the same one i have, slightly rounded corners BUT I've never been opened an di would rate the box a 9ish out of 10?







It's called the Power Playback Dragon Dagger and it comes with a green ranger flip head figure