These clips I think will last for many years! I believe most clips are made from polystyrene, which has sort of a glass like look so, it's pretty but, polystyrene is incredibly brittle so, over time (and not very much time) the prongs crack and fall off. These clips feel like they are made of maybe polypropylene or polycarbonate even since they are shiney (not sure actually, just making a guess but, they are for sure not polystyrene), whichever type of plastic they are made of is a nice and strong material. I have very long hair, almost to my knees and, I can keep all of it up all day by specifically arranging just three of these clips. The way they are shaped promotes a very comfortable fit next to the scalp and, no pulling. They don't get snagged when you take them out or fit too tightly. I basically have no complaints about them and think they are pretty great!