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 would not 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