Review on 6 PCS Clip-on Dog Cat Collar Lights: Colorful Safety Lights for Night Walking with Waterproof Hands-Free 3 Flash Modes by Tammy Horner

I use them for my daughter's backpack so she can be seen at the bus stop. There are 3 flash modes, they are bright and last a long time. The only thing is that they are not like in the photo. These show they are dangling, with a thin thread connecting the light to the hook - they are not. They are like the others with a thick metal hook and loop that the light sits in as a unit so they don't droop. This causes them to hang oddly when attached to the zip - they sometimes flip over and the back is exposed instead of the front, directing the light in rather than out where it's best seen.