hard to get out keeps hair secure even when you are done [SEP] i love this concept and that is why i purchased these i think with some fine tuning these will be excellent currently the little balls on the end the ones that keep it from scraping your scalp as you twist the pin into your hair do are attached in a way that catches the hair on the way out every time i want to take these out of my bun they get wound up and are very difficult to get out without pulling hair out that said it certainly keeps my hair secure while it is in there to the manufacturer excellent product great idea bad execution that can be easily fixed then i will buy them by the dozen