I ordered 24 of these glasses as party favors for a spy birthdya party.  They fit very well into this theme.  They were all individually wrapped in plastic and were all in good order when they arrived.  Of the 24 glasses about 2 broke during the party.  Honestly, I just found them lieing around and with 8 year old boys in attendance you never know what manner of stress was placed on them prior to them breaking.  The glasses were super cute and fit the kids heads well.  They weren't sliding down a lot which was suprising as I had those in attendance from age 3 to 10.  I definitley would not recommend these as glasses you would use to protect your children from the sun at the beach.  They didn't appear to have any UVA labels (althgouh I can't say that for sure).  I shopped around quite a bit for glasses and found this price for 12 pairs to be quite reasonable.  They were definitely better quality than a lot of cheap sunglasses you pick up at the party stores.  I paid somewhere in the $8 range for the 12.