Review (4/5): Great but...
It gave a good result. Nice curls without applying heat. First time, I left them on for 4 hours before bedtime. After waking up, my hair was straight out. Second time, I left them overnight. After 3 hours at work, my hair was straight out again. I recommend using hair spray to secure the curls as I am not a hair spray person because I like to run my finger through the hair.