The only downside from these was how long it took to get to me; I'm happy I got 5 bundles though as the hair is on the thin side; now I haven't done them yet so I can't make an opinion on how well the glue will hold but I will say I love how light layers were put in the hair and how shiny and soft they are. I am looking forward on doing this 🥰❤️❤️🥳