Stay securely in hair and nice sized [SEP] These are rainbow and I was expecting clear, but they are a good quality. Not overly rigid yes, but I wouldn't want something so rigid as it would not be flexible and could possibly be harder on the scalp. I think if the teeth on these are getting broken for anyone that they might not be using these correctly? I do not know how sturdy the rhinestones are, because I just received these and tried them out today. They stay securely in the hair, so if you have thin hair ... you will like these.