They were very cute but did not glow in the dark as expected. I emailed the company and they told me to let them stay out in sunlight for 20 minutes and then they would glow in the dark and they did for just a few minutes and then they no longer will glow in the dark. Each time I wanted them to glow in the dark I had to put them back in the sunlight. These did not glow at my daughter's skate party like I wanted them too.