these hair clips underestimated my power [SEP] so the reviews said this works for thick hair and it definitely works for what people normally describe as thick hairbuti have insanely thick wavy hair with a mind of it is own i can make these work right after i wash and brush my hair but the process looks nothing like the second hairstyle videos one may find onlinehowever it is not the manufacturers fault that i look like rapunzels cousin whose hair possesses volume instead of length had a baby with cousin it so for normal people preferably with straight or wavy hair this is a great product