not curved will not stay gets tangled in natually curly hair ouch [SEP] i am a mixed race woman with singlet like spiraled hair these combs a beautiful and have some weight to them i believe it was because of how heavy they were that they kept falling out of my hair when i pushed them down far enough to be useful they then got super tangled in my curls and i spent minutes trying to get them out i have not attempted to use them since and i have noticed that the teeth are oxidizing would not use again