My kids loved the lights, but the quality of these things are basically junk.  After less than a week the soles started separating from the upper portion, and a month they had significant holes 6 weeks and they're basically unusable.  This lack of durability was not unique to this pair.  We got another set through Nordstrom's and they replaced them every six weeks.  I felt guilty about getting them replaced after about six months (4-5 replacements) and just tossed them.