I originally had the 10 x 25 binocular, which are awesome but my daughter took over them. So I figured it's time for me to get my own more powerful pair so that way I cab have my own pair and a pair too big for her lol. These binoculars take a little time to get used to due to it being almost twice as strong as the smaller 10 x 25 pair. Once you get used to the adjusting of the lens you will be ready to see birds, fox or whatever you are watching a lot further and very clear. These Binoculars are very sturdy. They even have lens covers for both ends, which help keep the lens clean. I highly recommend these Binoculars!