I bought these as starter birdwatching  binoculars for my son who recently got into the hobby.  I got these primarily for the price and the decent reviews, hoping that Bushnell had improved their quality over the last 20 years...  but, I wasn't surprised when my son said that the focusing mechanism broke within 2 months of his receiving them and it wasn't due to misuse or dropping them:  the plastic housing for the set-screw cracked, which no longer allowed proper focusing (and I couldn't repair it).  Actually, I should've known this would happen with Bushnell because my initial birdwatching binoculars were Bushnell and I remember them becoming fairly useless soon after I started using them on a regular basis.  It's been Nikon or Minolta for me ever since...  I guess I  should've started my son on one of those as well.  So, on to the "store" for something better for the new birder.