We bought these because I needed them for my daughter's halloween costume.  Initially I thought a dozen was overkill because I only needed one pair, but it's a good thing I got a dozen.  Within 5 minutes of pulling out the first pair, my daughter broke the arm off.  Within 10 minutes, she had broken two more pairs.  I tucked the rest away until halloween.  She LOVES the glasses and likes to wear them, but they are not durable.  Not surprising for the price.  On some of the remaining pairs, the lenses popped out.  She's 20 months old, and she may be hard on them, so just don't buy them expecting them to last long.